19228716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 52865904

約数和(自身を除く): 33637188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 181, 227, 234, 362, 454, 468, 543, 681, 724, 908, 1086, 1362, 1629, 2043, 2172, 2353, 2724, 2951, 3258, 4086, 4706, 5902, 6516, 7059, 8172, 8853, 9412, 11804, 14118, 17706, 21177, 26559, 28236, 35412, 41087, 42354, 53118, 82174, 84708, 106236, 123261, 164348, 246522, 369783, 493044, 534131, 739566, 1068262, 1479132, 1602393, 2136524, 3204786, 4807179, 6409572, 9614358, 19228716]

約数ペア:

[(1, 19228716), (2, 9614358), (3, 6409572), (4, 4807179), (6, 3204786), (9, 2136524), (12, 1602393), (13, 1479132), (18, 1068262), (26, 739566), (36, 534131), (39, 493044), (52, 369783), (78, 246522), (117, 164348), (156, 123261), (181, 106236), (227, 84708), (234, 82174), (362, 53118), (454, 42354), (468, 41087), (543, 35412), (681, 28236), (724, 26559), (908, 21177), (1086, 17706), (1362, 14118), (1629, 11804), (2043, 9412), (2172, 8853), (2353, 8172), (2724, 7059), (2951, 6516), (3258, 5902), (4086, 4706)]