21479406

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{719}}^1$

素因数の和:1120

約数の個数: 32

約数和(自身を含む): 46448640

約数和(自身を除く): 24969234

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 383, 719, 766, 1149, 1438, 2157, 2298, 4314, 4979, 9347, 9958, 14937, 18694, 28041, 29874, 56082, 275377, 550754, 826131, 1652262, 3579901, 7159802, 10739703, 21479406]

約数ペア:

[(1, 21479406), (2, 10739703), (3, 7159802), (6, 3579901), (13, 1652262), (26, 826131), (39, 550754), (78, 275377), (383, 56082), (719, 29874), (766, 28041), (1149, 18694), (1438, 14937), (2157, 9958), (2298, 9347), (4314, 4979)]