21266472

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 56520000

約数和(自身を除く): 35253528

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 149, 152, 228, 298, 313, 447, 456, 596, 626, 894, 939, 1192, 1252, 1788, 1878, 2504, 2831, 3576, 3756, 5662, 5947, 7512, 8493, 11324, 11894, 16986, 17841, 22648, 23788, 33972, 35682, 46637, 47576, 67944, 71364, 93274, 139911, 142728, 186548, 279822, 373096, 559644, 886103, 1119288, 1772206, 2658309, 3544412, 5316618, 7088824, 10633236, 21266472]

約数ペア:

[(1, 21266472), (2, 10633236), (3, 7088824), (4, 5316618), (6, 3544412), (8, 2658309), (12, 1772206), (19, 1119288), (24, 886103), (38, 559644), (57, 373096), (76, 279822), (114, 186548), (149, 142728), (152, 139911), (228, 93274), (298, 71364), (313, 67944), (447, 47576), (456, 46637), (596, 35682), (626, 33972), (894, 23788), (939, 22648), (1192, 17841), (1252, 16986), (1788, 11894), (1878, 11324), (2504, 8493), (2831, 7512), (3576, 5947), (3756, 5662)]