21377970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1327}}^1$

素因数の和:1519

約数の個数: 48

約数和(自身を含む): 55935360

約数和(自身を除く): 34557390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 179, 358, 537, 895, 1074, 1327, 1611, 1790, 2654, 2685, 3222, 3981, 5370, 6635, 7962, 8055, 11943, 13270, 16110, 19905, 23886, 39810, 59715, 119430, 237533, 475066, 712599, 1187665, 1425198, 2137797, 2375330, 3562995, 4275594, 7125990, 10688985, 21377970]

約数ペア:

[(1, 21377970), (2, 10688985), (3, 7125990), (5, 4275594), (6, 3562995), (9, 2375330), (10, 2137797), (15, 1425198), (18, 1187665), (30, 712599), (45, 475066), (90, 237533), (179, 119430), (358, 59715), (537, 39810), (895, 23886), (1074, 19905), (1327, 16110), (1611, 13270), (1790, 11943), (2654, 8055), (2685, 7962), (3222, 6635), (3981, 5370)]