21310880

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5791}}^1$

素因数の和:5829

約数の個数: 48

約数和(自身を含む): 52545024

約数和(自身を除く): 31234144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5791, 11582, 23164, 28955, 46328, 57910, 92656, 115820, 133193, 185312, 231640, 266386, 463280, 532772, 665965, 926560, 1065544, 1331930, 2131088, 2663860, 4262176, 5327720, 10655440, 21310880]

約数ペア:

[(1, 21310880), (2, 10655440), (4, 5327720), (5, 4262176), (8, 2663860), (10, 2131088), (16, 1331930), (20, 1065544), (23, 926560), (32, 665965), (40, 532772), (46, 463280), (80, 266386), (92, 231640), (115, 185312), (160, 133193), (184, 115820), (230, 92656), (368, 57910), (460, 46328), (736, 28955), (920, 23164), (1840, 11582), (3680, 5791)]