21286320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{733}}^1$

素因数の和:771

約数の個数: 120

約数和(自身を含む): 72630768

約数和(自身を除く): 51344448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 660, 726, 733, 880, 968, 1210, 1320, 1452, 1466, 1815, 1936, 2199, 2420, 2640, 2904, 2932, 3630, 3665, 4398, 4840, 5808, 5864, 7260, 7330, 8063, 8796, 9680, 10995, 11728, 14520, 14660, 16126, 17592, 21990, 24189, 29040, 29320, 32252, 35184, 40315, 43980, 48378, 58640, 64504, 80630, 87960, 88693, 96756, 120945, 129008, 161260, 175920, 177386, 193512, 241890, 266079, 322520, 354772, 387024, 443465, 483780, 532158, 645040, 709544, 886930, 967560, 1064316, 1330395, 1419088, 1773860, 1935120, 2128632, 2660790, 3547720, 4257264, 5321580, 7095440, 10643160, 21286320]

約数ペア:

[(1, 21286320), (2, 10643160), (3, 7095440), (4, 5321580), (5, 4257264), (6, 3547720), (8, 2660790), (10, 2128632), (11, 1935120), (12, 1773860), (15, 1419088), (16, 1330395), (20, 1064316), (22, 967560), (24, 886930), (30, 709544), (33, 645040), (40, 532158), (44, 483780), (48, 443465), (55, 387024), (60, 354772), (66, 322520), (80, 266079), (88, 241890), (110, 193512), (120, 177386), (121, 175920), (132, 161260), (165, 129008), (176, 120945), (220, 96756), (240, 88693), (242, 87960), (264, 80630), (330, 64504), (363, 58640), (440, 48378), (484, 43980), (528, 40315), (605, 35184), (660, 32252), (726, 29320), (733, 29040), (880, 24189), (968, 21990), (1210, 17592), (1320, 16126), (1452, 14660), (1466, 14520), (1815, 11728), (1936, 10995), (2199, 9680), (2420, 8796), (2640, 8063), (2904, 7330), (2932, 7260), (3630, 5864), (3665, 5808), (4398, 4840)]