20218572

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 60662784

約数和(自身を除く): 40444212

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 31, 33, 36, 44, 54, 61, 62, 66, 81, 93, 99, 108, 122, 124, 132, 162, 183, 186, 198, 243, 244, 279, 297, 324, 341, 366, 372, 396, 486, 549, 558, 594, 671, 682, 732, 837, 891, 972, 1023, 1098, 1116, 1188, 1342, 1364, 1647, 1674, 1782, 1891, 2013, 2046, 2196, 2511, 2673, 2684, 3069, 3294, 3348, 3564, 3782, 4026, 4092, 4941, 5022, 5346, 5673, 6039, 6138, 6588, 7533, 7564, 8052, 9207, 9882, 10044, 10692, 11346, 12078, 12276, 14823, 15066, 17019, 18117, 18414, 19764, 20801, 22692, 24156, 27621, 29646, 30132, 34038, 36234, 36828, 41602, 51057, 54351, 55242, 59292, 62403, 68076, 72468, 82863, 83204, 102114, 108702, 110484, 124806, 153171, 163053, 165726, 187209, 204228, 217404, 249612, 306342, 326106, 331452, 374418, 459513, 561627, 612684, 652212, 748836, 919026, 1123254, 1684881, 1838052, 2246508, 3369762, 5054643, 6739524, 10109286, 20218572]

約数ペア:

[(1, 20218572), (2, 10109286), (3, 6739524), (4, 5054643), (6, 3369762), (9, 2246508), (11, 1838052), (12, 1684881), (18, 1123254), (22, 919026), (27, 748836), (31, 652212), (33, 612684), (36, 561627), (44, 459513), (54, 374418), (61, 331452), (62, 326106), (66, 306342), (81, 249612), (93, 217404), (99, 204228), (108, 187209), (122, 165726), (124, 163053), (132, 153171), (162, 124806), (183, 110484), (186, 108702), (198, 102114), (243, 83204), (244, 82863), (279, 72468), (297, 68076), (324, 62403), (341, 59292), (366, 55242), (372, 54351), (396, 51057), (486, 41602), (549, 36828), (558, 36234), (594, 34038), (671, 30132), (682, 29646), (732, 27621), (837, 24156), (891, 22692), (972, 20801), (1023, 19764), (1098, 18414), (1116, 18117), (1188, 17019), (1342, 15066), (1364, 14823), (1647, 12276), (1674, 12078), (1782, 11346), (1891, 10692), (2013, 10044), (2046, 9882), (2196, 9207), (2511, 8052), (2673, 7564), (2684, 7533), (3069, 6588), (3294, 6138), (3348, 6039), (3564, 5673), (3782, 5346), (4026, 5022), (4092, 4941)]