20872644

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1997}}^1$

素因数の和:2084

約数の個数: 48

約数和(自身を含む): 53258688

約数和(自身を除く): 32386044

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 1997, 2613, 3484, 3994, 5226, 5991, 7988, 10452, 11982, 23964, 25961, 51922, 77883, 103844, 133799, 155766, 267598, 311532, 401397, 535196, 802794, 1605588, 1739387, 3478774, 5218161, 6957548, 10436322, 20872644]

約数ペア:

[(1, 20872644), (2, 10436322), (3, 6957548), (4, 5218161), (6, 3478774), (12, 1739387), (13, 1605588), (26, 802794), (39, 535196), (52, 401397), (67, 311532), (78, 267598), (134, 155766), (156, 133799), (201, 103844), (268, 77883), (402, 51922), (804, 25961), (871, 23964), (1742, 11982), (1997, 10452), (2613, 7988), (3484, 5991), (3994, 5226)]