21556920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2333}}^1$

素因数の和:2365

約数の個数: 128

約数和(自身を含む): 80663040

約数和(自身を除く): 59106120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 2333, 3080, 4620, 4666, 6999, 9240, 9332, 11665, 13998, 16331, 18664, 23330, 25663, 27996, 32662, 34995, 46660, 48993, 51326, 55992, 65324, 69990, 76989, 81655, 93320, 97986, 102652, 128315, 130648, 139980, 153978, 163310, 179641, 195972, 205304, 244965, 256630, 279960, 307956, 326620, 359282, 384945, 391944, 489930, 513260, 538923, 615912, 653240, 718564, 769890, 898205, 979860, 1026520, 1077846, 1437128, 1539780, 1796410, 1959720, 2155692, 2694615, 3079560, 3592820, 4311384, 5389230, 7185640, 10778460, 21556920]

約数ペア:

[(1, 21556920), (2, 10778460), (3, 7185640), (4, 5389230), (5, 4311384), (6, 3592820), (7, 3079560), (8, 2694615), (10, 2155692), (11, 1959720), (12, 1796410), (14, 1539780), (15, 1437128), (20, 1077846), (21, 1026520), (22, 979860), (24, 898205), (28, 769890), (30, 718564), (33, 653240), (35, 615912), (40, 538923), (42, 513260), (44, 489930), (55, 391944), (56, 384945), (60, 359282), (66, 326620), (70, 307956), (77, 279960), (84, 256630), (88, 244965), (105, 205304), (110, 195972), (120, 179641), (132, 163310), (140, 153978), (154, 139980), (165, 130648), (168, 128315), (210, 102652), (220, 97986), (231, 93320), (264, 81655), (280, 76989), (308, 69990), (330, 65324), (385, 55992), (420, 51326), (440, 48993), (462, 46660), (616, 34995), (660, 32662), (770, 27996), (840, 25663), (924, 23330), (1155, 18664), (1320, 16331), (1540, 13998), (1848, 11665), (2310, 9332), (2333, 9240), (3080, 6999), (4620, 4666)]