20857356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1087}}^1$

素因数の和:1151

約数の個数: 72

約数和(自身を含む): 58216704

約数和(自身を除く): 37359348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 41, 52, 78, 82, 117, 123, 156, 164, 234, 246, 369, 468, 492, 533, 738, 1066, 1087, 1476, 1599, 2132, 2174, 3198, 3261, 4348, 4797, 6396, 6522, 9594, 9783, 13044, 14131, 19188, 19566, 28262, 39132, 42393, 44567, 56524, 84786, 89134, 127179, 133701, 169572, 178268, 254358, 267402, 401103, 508716, 534804, 579371, 802206, 1158742, 1604412, 1738113, 2317484, 3476226, 5214339, 6952452, 10428678, 20857356]

約数ペア:

[(1, 20857356), (2, 10428678), (3, 6952452), (4, 5214339), (6, 3476226), (9, 2317484), (12, 1738113), (13, 1604412), (18, 1158742), (26, 802206), (36, 579371), (39, 534804), (41, 508716), (52, 401103), (78, 267402), (82, 254358), (117, 178268), (123, 169572), (156, 133701), (164, 127179), (234, 89134), (246, 84786), (369, 56524), (468, 44567), (492, 42393), (533, 39132), (738, 28262), (1066, 19566), (1087, 19188), (1476, 14131), (1599, 13044), (2132, 9783), (2174, 9594), (3198, 6522), (3261, 6396), (4348, 4797)]