16989830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^2$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 36260784

約数和(自身を除く): 19270954

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 109, 110, 130, 143, 218, 286, 545, 715, 1090, 1199, 1417, 1430, 2398, 2834, 5995, 7085, 11881, 11990, 14170, 15587, 23762, 31174, 59405, 77935, 118810, 130691, 154453, 155870, 261382, 308906, 653455, 772265, 1306910, 1544530, 1698983, 3397966, 8494915, 16989830]

約数ペア:

[(1, 16989830), (2, 8494915), (5, 3397966), (10, 1698983), (11, 1544530), (13, 1306910), (22, 772265), (26, 653455), (55, 308906), (65, 261382), (109, 155870), (110, 154453), (130, 130691), (143, 118810), (218, 77935), (286, 59405), (545, 31174), (715, 23762), (1090, 15587), (1199, 14170), (1417, 11990), (1430, 11881), (2398, 7085), (2834, 5995)]