21897564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:419

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 39066276

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 23, 26, 34, 39, 46, 51, 52, 68, 69, 78, 92, 102, 138, 156, 204, 221, 276, 299, 359, 391, 442, 598, 663, 718, 782, 884, 897, 1077, 1173, 1196, 1326, 1436, 1564, 1794, 2154, 2346, 2652, 3588, 4308, 4667, 4692, 5083, 6103, 8257, 9334, 10166, 12206, 14001, 15249, 16514, 18309, 18668, 20332, 24412, 24771, 28002, 30498, 33028, 36618, 49542, 56004, 60996, 73236, 79339, 99084, 107341, 140369, 158678, 214682, 238017, 280738, 317356, 322023, 421107, 429364, 476034, 561476, 644046, 842214, 952068, 1288092, 1684428, 1824797, 3649594, 5474391, 7299188, 10948782, 21897564]

約数ペア:

[(1, 21897564), (2, 10948782), (3, 7299188), (4, 5474391), (6, 3649594), (12, 1824797), (13, 1684428), (17, 1288092), (23, 952068), (26, 842214), (34, 644046), (39, 561476), (46, 476034), (51, 429364), (52, 421107), (68, 322023), (69, 317356), (78, 280738), (92, 238017), (102, 214682), (138, 158678), (156, 140369), (204, 107341), (221, 99084), (276, 79339), (299, 73236), (359, 60996), (391, 56004), (442, 49542), (598, 36618), (663, 33028), (718, 30498), (782, 28002), (884, 24771), (897, 24412), (1077, 20332), (1173, 18668), (1196, 18309), (1326, 16514), (1436, 15249), (1564, 14001), (1794, 12206), (2154, 10166), (2346, 9334), (2652, 8257), (3588, 6103), (4308, 5083), (4667, 4692)]