21191454

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1$

素因数の和:769

約数の個数: 48

約数和(自身を含む): 48230208

約数和(自身を除く): 27038754

約数列:

[1, 2, 3, 6, 9, 18, 37, 47, 74, 94, 111, 141, 222, 282, 333, 423, 666, 677, 846, 1354, 1739, 2031, 3478, 4062, 5217, 6093, 10434, 12186, 15651, 25049, 31302, 31819, 50098, 63638, 75147, 95457, 150294, 190914, 225441, 286371, 450882, 572742, 1177303, 2354606, 3531909, 7063818, 10595727, 21191454]

約数ペア:

[(1, 21191454), (2, 10595727), (3, 7063818), (6, 3531909), (9, 2354606), (18, 1177303), (37, 572742), (47, 450882), (74, 286371), (94, 225441), (111, 190914), (141, 150294), (222, 95457), (282, 75147), (333, 63638), (423, 50098), (666, 31819), (677, 31302), (846, 25049), (1354, 15651), (1739, 12186), (2031, 10434), (3478, 6093), (4062, 5217)]