21439548

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:835

約数の個数: 72

約数和(自身を含む): 59398976

約数和(自身を除く): 37959428

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 61, 78, 117, 122, 156, 183, 234, 244, 366, 468, 549, 732, 751, 793, 1098, 1502, 1586, 2196, 2253, 2379, 3004, 3172, 4506, 4758, 6759, 7137, 9012, 9516, 9763, 13518, 14274, 19526, 27036, 28548, 29289, 39052, 45811, 58578, 87867, 91622, 117156, 137433, 175734, 183244, 274866, 351468, 412299, 549732, 595543, 824598, 1191086, 1649196, 1786629, 2382172, 3573258, 5359887, 7146516, 10719774, 21439548]

約数ペア:

[(1, 21439548), (2, 10719774), (3, 7146516), (4, 5359887), (6, 3573258), (9, 2382172), (12, 1786629), (13, 1649196), (18, 1191086), (26, 824598), (36, 595543), (39, 549732), (52, 412299), (61, 351468), (78, 274866), (117, 183244), (122, 175734), (156, 137433), (183, 117156), (234, 91622), (244, 87867), (366, 58578), (468, 45811), (549, 39052), (732, 29289), (751, 28548), (793, 27036), (1098, 19526), (1502, 14274), (1586, 13518), (2196, 9763), (2253, 9516), (2379, 9012), (3004, 7137), (3172, 6759), (4506, 4758)]