21889530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:432

約数の個数: 96

約数和(自身を含む): 62624016

約数和(自身を除く): 40734486

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 53, 65, 78, 90, 106, 117, 130, 159, 195, 234, 265, 318, 353, 390, 477, 530, 585, 689, 706, 795, 954, 1059, 1170, 1378, 1590, 1765, 2067, 2118, 2385, 3177, 3445, 3530, 4134, 4589, 4770, 5295, 6201, 6354, 6890, 9178, 10335, 10590, 12402, 13767, 15885, 18709, 20670, 22945, 27534, 31005, 31770, 37418, 41301, 45890, 56127, 62010, 68835, 82602, 93545, 112254, 137670, 168381, 187090, 206505, 243217, 280635, 336762, 413010, 486434, 561270, 729651, 841905, 1216085, 1459302, 1683810, 2188953, 2432170, 3648255, 4377906, 7296510, 10944765, 21889530]

約数ペア:

[(1, 21889530), (2, 10944765), (3, 7296510), (5, 4377906), (6, 3648255), (9, 2432170), (10, 2188953), (13, 1683810), (15, 1459302), (18, 1216085), (26, 841905), (30, 729651), (39, 561270), (45, 486434), (53, 413010), (65, 336762), (78, 280635), (90, 243217), (106, 206505), (117, 187090), (130, 168381), (159, 137670), (195, 112254), (234, 93545), (265, 82602), (318, 68835), (353, 62010), (390, 56127), (477, 45890), (530, 41301), (585, 37418), (689, 31770), (706, 31005), (795, 27534), (954, 22945), (1059, 20670), (1170, 18709), (1378, 15885), (1590, 13767), (1765, 12402), (2067, 10590), (2118, 10335), (2385, 9178), (3177, 6890), (3445, 6354), (3530, 6201), (4134, 5295), (4589, 4770)]