21259530

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1$

素因数の和:1196

約数の個数: 64

約数和(自身を含む): 57542400

約数和(自身を除く): 36282870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 90, 135, 142, 213, 270, 355, 426, 639, 710, 1065, 1109, 1278, 1917, 2130, 2218, 3195, 3327, 3834, 5545, 6390, 6654, 9585, 9981, 11090, 16635, 19170, 19962, 29943, 33270, 49905, 59886, 78739, 99810, 149715, 157478, 236217, 299430, 393695, 472434, 708651, 787390, 1181085, 1417302, 2125953, 2362170, 3543255, 4251906, 7086510, 10629765, 21259530]

約数ペア:

[(1, 21259530), (2, 10629765), (3, 7086510), (5, 4251906), (6, 3543255), (9, 2362170), (10, 2125953), (15, 1417302), (18, 1181085), (27, 787390), (30, 708651), (45, 472434), (54, 393695), (71, 299430), (90, 236217), (135, 157478), (142, 149715), (213, 99810), (270, 78739), (355, 59886), (426, 49905), (639, 33270), (710, 29943), (1065, 19962), (1109, 19170), (1278, 16635), (1917, 11090), (2130, 9981), (2218, 9585), (3195, 6654), (3327, 6390), (3834, 5545)]