221720642

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 405820800

約数和(自身を除く): 184100158

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 121, 143, 149, 242, 286, 298, 473, 559, 946, 1118, 1331, 1573, 1639, 1937, 2662, 3146, 3278, 3874, 5203, 6149, 6407, 10406, 12298, 12814, 17303, 18029, 21307, 34606, 36058, 42614, 57233, 67639, 70477, 83291, 114466, 135278, 140954, 166582, 198319, 234377, 396638, 468754, 744029, 775247, 916201, 1488058, 1550494, 1832402, 2578147, 5156294, 8527717, 10078211, 17055434, 20156422, 110860321, 221720642]

約数ペア:

[(1, 221720642), (2, 110860321), (11, 20156422), (13, 17055434), (22, 10078211), (26, 8527717), (43, 5156294), (86, 2578147), (121, 1832402), (143, 1550494), (149, 1488058), (242, 916201), (286, 775247), (298, 744029), (473, 468754), (559, 396638), (946, 234377), (1118, 198319), (1331, 166582), (1573, 140954), (1639, 135278), (1937, 114466), (2662, 83291), (3146, 70477), (3278, 67639), (3874, 57233), (5203, 42614), (6149, 36058), (6407, 34606), (10406, 21307), (12298, 18029), (12814, 17303)]