21631473

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 32221800

約数和(自身を除く): 10590327

約数列:

[1, 3, 9, 53, 101, 159, 303, 449, 477, 909, 1347, 4041, 5353, 16059, 23797, 45349, 48177, 71391, 136047, 214173, 408141, 2403497, 7210491, 21631473]

約数ペア:

[(1, 21631473), (3, 7210491), (9, 2403497), (53, 408141), (101, 214173), (159, 136047), (303, 71391), (449, 48177), (477, 45349), (909, 23797), (1347, 16059), (4041, 5353)]