21224216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 25950184

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 247, 299, 437, 467, 494, 598, 874, 934, 988, 1196, 1748, 1868, 1976, 2392, 3496, 3736, 5681, 6071, 8873, 10741, 11362, 12142, 17746, 21482, 22724, 24284, 35492, 42964, 45448, 48568, 70984, 85928, 115349, 139633, 204079, 230698, 279266, 408158, 461396, 558532, 816316, 922792, 1117064, 1632632, 2653027, 5306054, 10612108, 21224216]

約数ペア:

[(1, 21224216), (2, 10612108), (4, 5306054), (8, 2653027), (13, 1632632), (19, 1117064), (23, 922792), (26, 816316), (38, 558532), (46, 461396), (52, 408158), (76, 279266), (92, 230698), (104, 204079), (152, 139633), (184, 115349), (247, 85928), (299, 70984), (437, 48568), (467, 45448), (494, 42964), (598, 35492), (874, 24284), (934, 22724), (988, 21482), (1196, 17746), (1748, 12142), (1868, 11362), (1976, 10741), (2392, 8873), (3496, 6071), (3736, 5681)]