20891268

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^2\times {\mathrm{1097}}^1$

素因数の和:1153

約数の個数: 54

約数和(自身を含む): 55254654

約数和(自身を除く): 34363386

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 529, 828, 1058, 1097, 1587, 2116, 2194, 3174, 3291, 4388, 4761, 6348, 6582, 9522, 9873, 13164, 19044, 19746, 25231, 39492, 50462, 75693, 100924, 151386, 227079, 302772, 454158, 580313, 908316, 1160626, 1740939, 2321252, 3481878, 5222817, 6963756, 10445634, 20891268]

約数ペア:

[(1, 20891268), (2, 10445634), (3, 6963756), (4, 5222817), (6, 3481878), (9, 2321252), (12, 1740939), (18, 1160626), (23, 908316), (36, 580313), (46, 454158), (69, 302772), (92, 227079), (138, 151386), (207, 100924), (276, 75693), (414, 50462), (529, 39492), (828, 25231), (1058, 19746), (1097, 19044), (1587, 13164), (2116, 9873), (2194, 9522), (3174, 6582), (3291, 6348), (4388, 4761)]