21294312

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 57879360

約数和(自身を除く): 36585048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 131, 156, 262, 312, 393, 521, 524, 786, 1042, 1048, 1563, 1572, 1703, 2084, 3126, 3144, 3406, 4168, 5109, 6252, 6773, 6812, 10218, 12504, 13546, 13624, 20319, 20436, 27092, 40638, 40872, 54184, 68251, 81276, 136502, 162552, 204753, 273004, 409506, 546008, 819012, 887263, 1638024, 1774526, 2661789, 3549052, 5323578, 7098104, 10647156, 21294312]

約数ペア:

[(1, 21294312), (2, 10647156), (3, 7098104), (4, 5323578), (6, 3549052), (8, 2661789), (12, 1774526), (13, 1638024), (24, 887263), (26, 819012), (39, 546008), (52, 409506), (78, 273004), (104, 204753), (131, 162552), (156, 136502), (262, 81276), (312, 68251), (393, 54184), (521, 40872), (524, 40638), (786, 27092), (1042, 20436), (1048, 20319), (1563, 13624), (1572, 13546), (1703, 12504), (2084, 10218), (3126, 6812), (3144, 6773), (3406, 6252), (4168, 5109)]