21721764

素因数分解:

$2^2\times 3^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 52016832

約数和(自身を除く): 30295068

約数列:

[1, 2, 3, 4, 6, 12, 83, 113, 166, 193, 226, 249, 332, 339, 386, 452, 498, 579, 678, 772, 996, 1158, 1356, 2316, 9379, 16019, 18758, 21809, 28137, 32038, 37516, 43618, 48057, 56274, 64076, 65427, 87236, 96114, 112548, 130854, 192228, 261708, 1810147, 3620294, 5430441, 7240588, 10860882, 21721764]

約数ペア:

[(1, 21721764), (2, 10860882), (3, 7240588), (4, 5430441), (6, 3620294), (12, 1810147), (83, 261708), (113, 192228), (166, 130854), (193, 112548), (226, 96114), (249, 87236), (332, 65427), (339, 64076), (386, 56274), (452, 48057), (498, 43618), (579, 37516), (678, 32038), (772, 28137), (996, 21809), (1158, 18758), (1356, 16019), (2316, 9379)]