21241620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6211}}^1$

素因数の和:6245

約数の個数: 72

約数和(自身を含む): 67835040

約数和(自身を除く): 46593420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6211, 12422, 18633, 24844, 31055, 37266, 55899, 62110, 74532, 93165, 111798, 118009, 124220, 186330, 223596, 236018, 279495, 354027, 372660, 472036, 558990, 590045, 708054, 1062081, 1117980, 1180090, 1416108, 1770135, 2124162, 2360180, 3540270, 4248324, 5310405, 7080540, 10620810, 21241620]

約数ペア:

[(1, 21241620), (2, 10620810), (3, 7080540), (4, 5310405), (5, 4248324), (6, 3540270), (9, 2360180), (10, 2124162), (12, 1770135), (15, 1416108), (18, 1180090), (19, 1117980), (20, 1062081), (30, 708054), (36, 590045), (38, 558990), (45, 472036), (57, 372660), (60, 354027), (76, 279495), (90, 236018), (95, 223596), (114, 186330), (171, 124220), (180, 118009), (190, 111798), (228, 93165), (285, 74532), (342, 62110), (380, 55899), (570, 37266), (684, 31055), (855, 24844), (1140, 18633), (1710, 12422), (3420, 6211)]