20171497788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{917053}}^1$

素因数の和:917123

約数の個数: 72

約数和(自身を含む): 56079686208

約数和(自身を除く): 35908188420

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 188, 234, 282, 423, 468, 564, 611, 846, 1222, 1692, 1833, 2444, 3666, 5499, 7332, 10998, 21996, 917053, 1834106, 2751159, 3668212, 5502318, 8253477, 11004636, 11921689, 16506954, 23843378, 33013908, 35765067, 43101491, 47686756, 71530134, 86202982, 107295201, 129304473, 143060268, 172405964, 214590402, 258608946, 387913419, 429180804, 517217892, 560319383, 775826838, 1120638766, 1551653676, 1680958149, 2241277532, 3361916298, 5042874447, 6723832596, 10085748894, 20171497788]

約数ペア:

[(1, 20171497788), (2, 10085748894), (3, 6723832596), (4, 5042874447), (6, 3361916298), (9, 2241277532), (12, 1680958149), (13, 1551653676), (18, 1120638766), (26, 775826838), (36, 560319383), (39, 517217892), (47, 429180804), (52, 387913419), (78, 258608946), (94, 214590402), (117, 172405964), (141, 143060268), (156, 129304473), (188, 107295201), (234, 86202982), (282, 71530134), (423, 47686756), (468, 43101491), (564, 35765067), (611, 33013908), (846, 23843378), (1222, 16506954), (1692, 11921689), (1833, 11004636), (2444, 8253477), (3666, 5502318), (5499, 3668212), (7332, 2751159), (10998, 1834106), (21996, 917053)]