20863744

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 26230016

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 239, 248, 256, 341, 352, 478, 496, 682, 704, 956, 992, 1364, 1408, 1912, 1984, 2629, 2728, 2816, 3824, 3968, 5258, 5456, 7409, 7648, 7936, 10516, 10912, 14818, 15296, 21032, 21824, 29636, 30592, 42064, 43648, 59272, 61184, 81499, 84128, 87296, 118544, 162998, 168256, 237088, 325996, 336512, 474176, 651992, 673024, 948352, 1303984, 1896704, 2607968, 5215936, 10431872, 20863744]

約数ペア:

[(1, 20863744), (2, 10431872), (4, 5215936), (8, 2607968), (11, 1896704), (16, 1303984), (22, 948352), (31, 673024), (32, 651992), (44, 474176), (62, 336512), (64, 325996), (88, 237088), (124, 168256), (128, 162998), (176, 118544), (239, 87296), (248, 84128), (256, 81499), (341, 61184), (352, 59272), (478, 43648), (496, 42064), (682, 30592), (704, 29636), (956, 21824), (992, 21032), (1364, 15296), (1408, 14818), (1912, 10912), (1984, 10516), (2629, 7936), (2728, 7648), (2816, 7409), (3824, 5456), (3968, 5258)]