21365358

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1657}}^1$

素因数の和:1976

約数の個数: 32

約数和(自身を含む): 49023744

約数和(自身を除く): 27658386

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 307, 614, 921, 1657, 1842, 2149, 3314, 4298, 4971, 6447, 9942, 11599, 12894, 23198, 34797, 69594, 508699, 1017398, 1526097, 3052194, 3560893, 7121786, 10682679, 21365358]

約数ペア:

[(1, 21365358), (2, 10682679), (3, 7121786), (6, 3560893), (7, 3052194), (14, 1526097), (21, 1017398), (42, 508699), (307, 69594), (614, 34797), (921, 23198), (1657, 12894), (1842, 11599), (2149, 9942), (3314, 6447), (4298, 4971)]