20716308

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1037

約数の個数: 72

約数和(自身を含む): 56958720

約数和(自身を除く): 36242412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 977, 1116, 1178, 1767, 1954, 2356, 2931, 3534, 3908, 5301, 5862, 7068, 8793, 10602, 11724, 17586, 18563, 21204, 30287, 35172, 37126, 55689, 60574, 74252, 90861, 111378, 121148, 167067, 181722, 222756, 272583, 334134, 363444, 545166, 575453, 668268, 1090332, 1150906, 1726359, 2301812, 3452718, 5179077, 6905436, 10358154, 20716308]

約数ペア:

[(1, 20716308), (2, 10358154), (3, 6905436), (4, 5179077), (6, 3452718), (9, 2301812), (12, 1726359), (18, 1150906), (19, 1090332), (31, 668268), (36, 575453), (38, 545166), (57, 363444), (62, 334134), (76, 272583), (93, 222756), (114, 181722), (124, 167067), (171, 121148), (186, 111378), (228, 90861), (279, 74252), (342, 60574), (372, 55689), (558, 37126), (589, 35172), (684, 30287), (977, 21204), (1116, 18563), (1178, 17586), (1767, 11724), (1954, 10602), (2356, 8793), (2931, 7068), (3534, 5862), (3908, 5301)]