21564522

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 55468800

約数和(自身を除く): 33904278

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 89, 126, 178, 189, 267, 378, 534, 623, 641, 801, 1246, 1282, 1602, 1869, 1923, 2403, 3738, 3846, 4487, 4806, 5607, 5769, 8974, 11214, 11538, 13461, 16821, 17307, 26922, 33642, 34614, 40383, 57049, 80766, 114098, 121149, 171147, 242298, 342294, 399343, 513441, 798686, 1026882, 1198029, 1540323, 2396058, 3080646, 3594087, 7188174, 10782261, 21564522]

約数ペア:

[(1, 21564522), (2, 10782261), (3, 7188174), (6, 3594087), (7, 3080646), (9, 2396058), (14, 1540323), (18, 1198029), (21, 1026882), (27, 798686), (42, 513441), (54, 399343), (63, 342294), (89, 242298), (126, 171147), (178, 121149), (189, 114098), (267, 80766), (378, 57049), (534, 40383), (623, 34614), (641, 33642), (801, 26922), (1246, 17307), (1282, 16821), (1602, 13461), (1869, 11538), (1923, 11214), (2403, 8974), (3738, 5769), (3846, 5607), (4487, 4806)]