20504358

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{461}}^1$

素因数の和:829

約数の個数: 48

約数和(自身を含む): 51026976

約数和(自身を除く): 30522618

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 353, 461, 706, 922, 1059, 1383, 2118, 2471, 2766, 3177, 3227, 4149, 4942, 6354, 6454, 7413, 8298, 9681, 14826, 19362, 22239, 29043, 44478, 58086, 162733, 325466, 488199, 976398, 1139131, 1464597, 2278262, 2929194, 3417393, 6834786, 10252179, 20504358]

約数ペア:

[(1, 20504358), (2, 10252179), (3, 6834786), (6, 3417393), (7, 2929194), (9, 2278262), (14, 1464597), (18, 1139131), (21, 976398), (42, 488199), (63, 325466), (126, 162733), (353, 58086), (461, 44478), (706, 29043), (922, 22239), (1059, 19362), (1383, 14826), (2118, 9681), (2471, 8298), (2766, 7413), (3177, 6454), (3227, 6354), (4149, 4942)]