21151320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{176261}}^1$

素因数の和:176275

約数の個数: 32

約数和(自身を含む): 63454320

約数和(自身を除く): 42303000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 176261, 352522, 528783, 705044, 881305, 1057566, 1410088, 1762610, 2115132, 2643915, 3525220, 4230264, 5287830, 7050440, 10575660, 21151320]

約数ペア:

[(1, 21151320), (2, 10575660), (3, 7050440), (4, 5287830), (5, 4230264), (6, 3525220), (8, 2643915), (10, 2115132), (12, 1762610), (15, 1410088), (20, 1057566), (24, 881305), (30, 705044), (40, 528783), (60, 352522), (120, 176261)]