21753830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2447}}^1$

素因数の和:2588

約数の個数: 32

約数和(自身を含む): 45121536

約数和(自身を除く): 23367706

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 2447, 4445, 4894, 8890, 12235, 17129, 24470, 34258, 85645, 171290, 310769, 621538, 1553845, 2175383, 3107690, 4350766, 10876915, 21753830]

約数ペア:

[(1, 21753830), (2, 10876915), (5, 4350766), (7, 3107690), (10, 2175383), (14, 1553845), (35, 621538), (70, 310769), (127, 171290), (254, 85645), (635, 34258), (889, 24470), (1270, 17129), (1778, 12235), (2447, 8890), (4445, 4894)]