21310860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1229}}^1$

素因数の和:1275

約数の個数: 72

約数和(自身を含む): 63438480

約数和(自身を除く): 42127620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 289, 340, 510, 578, 867, 1020, 1156, 1229, 1445, 1734, 2458, 2890, 3468, 3687, 4335, 4916, 5780, 6145, 7374, 8670, 12290, 14748, 17340, 18435, 20893, 24580, 36870, 41786, 62679, 73740, 83572, 104465, 125358, 208930, 250716, 313395, 355181, 417860, 626790, 710362, 1065543, 1253580, 1420724, 1775905, 2131086, 3551810, 4262172, 5327715, 7103620, 10655430, 21310860]

約数ペア:

[(1, 21310860), (2, 10655430), (3, 7103620), (4, 5327715), (5, 4262172), (6, 3551810), (10, 2131086), (12, 1775905), (15, 1420724), (17, 1253580), (20, 1065543), (30, 710362), (34, 626790), (51, 417860), (60, 355181), (68, 313395), (85, 250716), (102, 208930), (170, 125358), (204, 104465), (255, 83572), (289, 73740), (340, 62679), (510, 41786), (578, 36870), (867, 24580), (1020, 20893), (1156, 18435), (1229, 17340), (1445, 14748), (1734, 12290), (2458, 8670), (2890, 7374), (3468, 6145), (3687, 5780), (4335, 4916)]