20613366

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 80

約数和(自身を含む): 50210160

約数和(自身を除く): 29596794

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 37, 38, 54, 57, 74, 81, 111, 114, 162, 171, 181, 222, 333, 342, 362, 513, 543, 666, 703, 999, 1026, 1086, 1406, 1539, 1629, 1998, 2109, 2997, 3078, 3258, 3439, 4218, 4887, 5994, 6327, 6697, 6878, 9774, 10317, 12654, 13394, 14661, 18981, 20091, 20634, 29322, 30951, 37962, 40182, 56943, 60273, 61902, 92853, 113886, 120546, 127243, 180819, 185706, 254486, 278559, 361638, 381729, 542457, 557118, 763458, 1084914, 1145187, 2290374, 3435561, 6871122, 10306683, 20613366]

約数ペア:

[(1, 20613366), (2, 10306683), (3, 6871122), (6, 3435561), (9, 2290374), (18, 1145187), (19, 1084914), (27, 763458), (37, 557118), (38, 542457), (54, 381729), (57, 361638), (74, 278559), (81, 254486), (111, 185706), (114, 180819), (162, 127243), (171, 120546), (181, 113886), (222, 92853), (333, 61902), (342, 60273), (362, 56943), (513, 40182), (543, 37962), (666, 30951), (703, 29322), (999, 20634), (1026, 20091), (1086, 18981), (1406, 14661), (1539, 13394), (1629, 12654), (1998, 10317), (2109, 9774), (2997, 6878), (3078, 6697), (3258, 6327), (3439, 5994), (4218, 4887)]