31573828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{191}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 69318144

約数和(自身を除く): 37744316

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 191, 221, 286, 289, 374, 382, 442, 572, 578, 748, 764, 884, 1156, 2101, 2431, 2483, 3179, 3247, 3757, 4202, 4862, 4966, 6358, 6494, 7514, 8404, 9724, 9932, 12716, 12988, 15028, 27313, 35717, 41327, 42211, 54626, 55199, 71434, 82654, 84422, 109252, 110398, 142868, 165308, 168844, 220796, 464321, 607189, 717587, 928642, 1214378, 1435174, 1857284, 2428756, 2870348, 7893457, 15786914, 31573828]

約数ペア:

[(1, 31573828), (2, 15786914), (4, 7893457), (11, 2870348), (13, 2428756), (17, 1857284), (22, 1435174), (26, 1214378), (34, 928642), (44, 717587), (52, 607189), (68, 464321), (143, 220796), (187, 168844), (191, 165308), (221, 142868), (286, 110398), (289, 109252), (374, 84422), (382, 82654), (442, 71434), (572, 55199), (578, 54626), (748, 42211), (764, 41327), (884, 35717), (1156, 27313), (2101, 15028), (2431, 12988), (2483, 12716), (3179, 9932), (3247, 9724), (3757, 8404), (4202, 7514), (4862, 6494), (4966, 6358)]