21347640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3121}}^1$

素因数の和:3157

約数の個数: 96

約数和(自身を含む): 73054800

約数和(自身を除く): 51707160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3121, 3420, 6242, 6840, 9363, 12484, 15605, 18726, 24968, 28089, 31210, 37452, 46815, 56178, 59299, 62420, 74904, 93630, 112356, 118598, 124840, 140445, 177897, 187260, 224712, 237196, 280890, 296495, 355794, 374520, 474392, 533691, 561780, 592990, 711588, 889485, 1067382, 1123560, 1185980, 1423176, 1778970, 2134764, 2371960, 2668455, 3557940, 4269528, 5336910, 7115880, 10673820, 21347640]

約数ペア:

[(1, 21347640), (2, 10673820), (3, 7115880), (4, 5336910), (5, 4269528), (6, 3557940), (8, 2668455), (9, 2371960), (10, 2134764), (12, 1778970), (15, 1423176), (18, 1185980), (19, 1123560), (20, 1067382), (24, 889485), (30, 711588), (36, 592990), (38, 561780), (40, 533691), (45, 474392), (57, 374520), (60, 355794), (72, 296495), (76, 280890), (90, 237196), (95, 224712), (114, 187260), (120, 177897), (152, 140445), (171, 124840), (180, 118598), (190, 112356), (228, 93630), (285, 74904), (342, 62420), (360, 59299), (380, 56178), (456, 46815), (570, 37452), (684, 31210), (760, 28089), (855, 24968), (1140, 18726), (1368, 15605), (1710, 12484), (2280, 9363), (3121, 6840), (3420, 6242)]