19994676

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1913}}^1$

素因数の和:2000

約数の個数: 48

約数和(自身を含む): 51019584

約数和(自身を除く): 31024908

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 1913, 2613, 3484, 3826, 5226, 5739, 7652, 10452, 11478, 22956, 24869, 49738, 74607, 99476, 128171, 149214, 256342, 298428, 384513, 512684, 769026, 1538052, 1666223, 3332446, 4998669, 6664892, 9997338, 19994676]

約数ペア:

[(1, 19994676), (2, 9997338), (3, 6664892), (4, 4998669), (6, 3332446), (12, 1666223), (13, 1538052), (26, 769026), (39, 512684), (52, 384513), (67, 298428), (78, 256342), (134, 149214), (156, 128171), (201, 99476), (268, 74607), (402, 49738), (804, 24869), (871, 22956), (1742, 11478), (1913, 10452), (2613, 7652), (3484, 5739), (3826, 5226)]