21856122120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{83663}}^1$

素因数の和:83995

約数の個数: 128

約数和(自身を含む): 75177123840

約数和(自身を除く): 53321001720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 311, 420, 622, 840, 933, 1244, 1555, 1866, 2177, 2488, 3110, 3732, 4354, 4665, 6220, 6531, 7464, 8708, 9330, 10885, 12440, 13062, 17416, 18660, 21770, 26124, 32655, 37320, 43540, 52248, 65310, 83663, 87080, 130620, 167326, 250989, 261240, 334652, 418315, 501978, 585641, 669304, 836630, 1003956, 1171282, 1254945, 1673260, 1756923, 2007912, 2342564, 2509890, 2928205, 3346520, 3513846, 4685128, 5019780, 5856410, 7027692, 8784615, 10039560, 11712820, 14055384, 17569230, 23425640, 26019193, 35138460, 52038386, 70276920, 78057579, 104076772, 130095965, 156115158, 182134351, 208153544, 260191930, 312230316, 364268702, 390287895, 520383860, 546403053, 624460632, 728537404, 780575790, 910671755, 1040767720, 1092806106, 1457074808, 1561151580, 1821343510, 2185612212, 2732015265, 3122303160, 3642687020, 4371224424, 5464030530, 7285374040, 10928061060, 21856122120]

約数ペア:

[(1, 21856122120), (2, 10928061060), (3, 7285374040), (4, 5464030530), (5, 4371224424), (6, 3642687020), (7, 3122303160), (8, 2732015265), (10, 2185612212), (12, 1821343510), (14, 1561151580), (15, 1457074808), (20, 1092806106), (21, 1040767720), (24, 910671755), (28, 780575790), (30, 728537404), (35, 624460632), (40, 546403053), (42, 520383860), (56, 390287895), (60, 364268702), (70, 312230316), (84, 260191930), (105, 208153544), (120, 182134351), (140, 156115158), (168, 130095965), (210, 104076772), (280, 78057579), (311, 70276920), (420, 52038386), (622, 35138460), (840, 26019193), (933, 23425640), (1244, 17569230), (1555, 14055384), (1866, 11712820), (2177, 10039560), (2488, 8784615), (3110, 7027692), (3732, 5856410), (4354, 5019780), (4665, 4685128), (6220, 3513846), (6531, 3346520), (7464, 2928205), (8708, 2509890), (9330, 2342564), (10885, 2007912), (12440, 1756923), (13062, 1673260), (17416, 1254945), (18660, 1171282), (21770, 1003956), (26124, 836630), (32655, 669304), (37320, 585641), (43540, 501978), (52248, 418315), (65310, 334652), (83663, 261240), (87080, 250989), (130620, 167326)]