20854938

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 45799776

約数和(自身を除く): 24944838

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 131, 157, 169, 262, 314, 338, 393, 471, 507, 786, 942, 1014, 1703, 2041, 3406, 4082, 5109, 6123, 10218, 12246, 20567, 22139, 26533, 41134, 44278, 53066, 61701, 66417, 79599, 123402, 132834, 159198, 267371, 534742, 802113, 1604226, 3475823, 6951646, 10427469, 20854938]

約数ペア:

[(1, 20854938), (2, 10427469), (3, 6951646), (6, 3475823), (13, 1604226), (26, 802113), (39, 534742), (78, 267371), (131, 159198), (157, 132834), (169, 123402), (262, 79599), (314, 66417), (338, 61701), (393, 53066), (471, 44278), (507, 41134), (786, 26533), (942, 22139), (1014, 20567), (1703, 12246), (2041, 10218), (3406, 6123), (4082, 5109)]