21511320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{179261}}^1$

素因数の和:179275

約数の個数: 32

約数和(自身を含む): 64534320

約数和(自身を除く): 43023000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 179261, 358522, 537783, 717044, 896305, 1075566, 1434088, 1792610, 2151132, 2688915, 3585220, 4302264, 5377830, 7170440, 10755660, 21511320]

約数ペア:

[(1, 21511320), (2, 10755660), (3, 7170440), (4, 5377830), (5, 4302264), (6, 3585220), (8, 2688915), (10, 2151132), (12, 1792610), (15, 1434088), (20, 1075566), (24, 896305), (30, 717044), (40, 537783), (60, 358522), (120, 179261)]