21107760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2377}}^1$

素因数の和:2430

約数の個数: 80

約数和(自身を含む): 67230816

約数和(自身を除く): 46123056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2377, 2960, 4440, 4754, 7131, 8880, 9508, 11885, 14262, 19016, 23770, 28524, 35655, 38032, 47540, 57048, 71310, 87949, 95080, 114096, 142620, 175898, 190160, 263847, 285240, 351796, 439745, 527694, 570480, 703592, 879490, 1055388, 1319235, 1407184, 1758980, 2110776, 2638470, 3517960, 4221552, 5276940, 7035920, 10553880, 21107760]

約数ペア:

[(1, 21107760), (2, 10553880), (3, 7035920), (4, 5276940), (5, 4221552), (6, 3517960), (8, 2638470), (10, 2110776), (12, 1758980), (15, 1407184), (16, 1319235), (20, 1055388), (24, 879490), (30, 703592), (37, 570480), (40, 527694), (48, 439745), (60, 351796), (74, 285240), (80, 263847), (111, 190160), (120, 175898), (148, 142620), (185, 114096), (222, 95080), (240, 87949), (296, 71310), (370, 57048), (444, 47540), (555, 38032), (592, 35655), (740, 28524), (888, 23770), (1110, 19016), (1480, 14262), (1776, 11885), (2220, 9508), (2377, 8880), (2960, 7131), (4440, 4754)]