21070452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4357}}^1$

素因数の和:4408

約数の個数: 48

約数和(自身を含む): 54666752

約数和(自身を除く): 33596300

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4357, 4836, 8714, 13071, 17428, 26142, 52284, 56641, 113282, 135067, 169923, 226564, 270134, 339846, 405201, 540268, 679692, 810402, 1620804, 1755871, 3511742, 5267613, 7023484, 10535226, 21070452]

約数ペア:

[(1, 21070452), (2, 10535226), (3, 7023484), (4, 5267613), (6, 3511742), (12, 1755871), (13, 1620804), (26, 810402), (31, 679692), (39, 540268), (52, 405201), (62, 339846), (78, 270134), (93, 226564), (124, 169923), (156, 135067), (186, 113282), (372, 56641), (403, 52284), (806, 26142), (1209, 17428), (1612, 13071), (2418, 8714), (4357, 4836)]