21202470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2647}}^1$

素因数の和:2749

約数の個数: 48

約数和(自身を含む): 55766880

約数和(自身を除く): 34564410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2647, 2670, 4005, 5294, 7941, 8010, 13235, 15882, 23823, 26470, 39705, 47646, 79410, 119115, 235583, 238230, 471166, 706749, 1177915, 1413498, 2120247, 2355830, 3533745, 4240494, 7067490, 10601235, 21202470]

約数ペア:

[(1, 21202470), (2, 10601235), (3, 7067490), (5, 4240494), (6, 3533745), (9, 2355830), (10, 2120247), (15, 1413498), (18, 1177915), (30, 706749), (45, 471166), (89, 238230), (90, 235583), (178, 119115), (267, 79410), (445, 47646), (534, 39705), (801, 26470), (890, 23823), (1335, 15882), (1602, 13235), (2647, 8010), (2670, 7941), (4005, 5294)]