20416578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 51163392

約数和(自身を除く): 30746814

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 61, 78, 91, 122, 182, 183, 273, 366, 427, 546, 613, 793, 854, 1226, 1281, 1586, 1839, 2379, 2562, 3678, 4291, 4758, 5551, 7969, 8582, 11102, 12873, 15938, 16653, 23907, 25746, 33306, 37393, 47814, 55783, 74786, 111566, 112179, 167349, 224358, 261751, 334698, 486109, 523502, 785253, 972218, 1458327, 1570506, 2916654, 3402763, 6805526, 10208289, 20416578]

約数ペア:

[(1, 20416578), (2, 10208289), (3, 6805526), (6, 3402763), (7, 2916654), (13, 1570506), (14, 1458327), (21, 972218), (26, 785253), (39, 523502), (42, 486109), (61, 334698), (78, 261751), (91, 224358), (122, 167349), (182, 112179), (183, 111566), (273, 74786), (366, 55783), (427, 47814), (546, 37393), (613, 33306), (793, 25746), (854, 23907), (1226, 16653), (1281, 15938), (1586, 12873), (1839, 11102), (2379, 8582), (2562, 7969), (3678, 5551), (4291, 4758)]