21558992

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 55550016

約数和(自身を除く): 33991024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 67, 68, 91, 104, 112, 119, 134, 136, 169, 182, 208, 221, 238, 268, 272, 338, 364, 442, 469, 476, 536, 676, 728, 871, 884, 938, 952, 1072, 1139, 1183, 1352, 1456, 1547, 1742, 1768, 1876, 1904, 2278, 2366, 2704, 2873, 3094, 3484, 3536, 3752, 4556, 4732, 5746, 6097, 6188, 6968, 7504, 7973, 9112, 9464, 11323, 11492, 12194, 12376, 13936, 14807, 15946, 18224, 18928, 20111, 22646, 22984, 24388, 24752, 29614, 31892, 40222, 45292, 45968, 48776, 59228, 63784, 79261, 80444, 90584, 97552, 103649, 118456, 127568, 158522, 160888, 181168, 192491, 207298, 236912, 317044, 321776, 384982, 414596, 634088, 769964, 829192, 1268176, 1347437, 1539928, 1658384, 2694874, 3079856, 5389748, 10779496, 21558992]

約数ペア:

[(1, 21558992), (2, 10779496), (4, 5389748), (7, 3079856), (8, 2694874), (13, 1658384), (14, 1539928), (16, 1347437), (17, 1268176), (26, 829192), (28, 769964), (34, 634088), (52, 414596), (56, 384982), (67, 321776), (68, 317044), (91, 236912), (104, 207298), (112, 192491), (119, 181168), (134, 160888), (136, 158522), (169, 127568), (182, 118456), (208, 103649), (221, 97552), (238, 90584), (268, 80444), (272, 79261), (338, 63784), (364, 59228), (442, 48776), (469, 45968), (476, 45292), (536, 40222), (676, 31892), (728, 29614), (871, 24752), (884, 24388), (938, 22984), (952, 22646), (1072, 20111), (1139, 18928), (1183, 18224), (1352, 15946), (1456, 14807), (1547, 13936), (1742, 12376), (1768, 12194), (1876, 11492), (1904, 11323), (2278, 9464), (2366, 9112), (2704, 7973), (2873, 7504), (3094, 6968), (3484, 6188), (3536, 6097), (3752, 5746), (4556, 4732)]