18976491

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 29160000

約数和(自身を除く): 10183509

約数列:

[1, 3, 9, 27, 53, 89, 149, 159, 267, 447, 477, 801, 1341, 1431, 2403, 4023, 4717, 7897, 13261, 14151, 23691, 39783, 42453, 71073, 119349, 127359, 213219, 358047, 702833, 2108499, 6325497, 18976491]

約数ペア:

[(1, 18976491), (3, 6325497), (9, 2108499), (27, 702833), (53, 358047), (89, 213219), (149, 127359), (159, 119349), (267, 71073), (447, 42453), (477, 39783), (801, 23691), (1341, 14151), (1431, 13261), (2403, 7897), (4023, 4717)]