21189952

素因数分解:

$2^6\times 7^2\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:288

約数の個数: 84

約数和(自身を含む): 50817780

約数和(自身を除く): 29627828

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 49, 56, 58, 64, 98, 112, 116, 196, 203, 224, 232, 233, 392, 406, 448, 464, 466, 784, 812, 928, 932, 1421, 1568, 1624, 1631, 1856, 1864, 2842, 3136, 3248, 3262, 3728, 5684, 6496, 6524, 6757, 7456, 11368, 11417, 12992, 13048, 13514, 14912, 22736, 22834, 26096, 27028, 45472, 45668, 47299, 52192, 54056, 90944, 91336, 94598, 104384, 108112, 182672, 189196, 216224, 331093, 365344, 378392, 432448, 662186, 730688, 756784, 1324372, 1513568, 2648744, 3027136, 5297488, 10594976, 21189952]

約数ペア:

[(1, 21189952), (2, 10594976), (4, 5297488), (7, 3027136), (8, 2648744), (14, 1513568), (16, 1324372), (28, 756784), (29, 730688), (32, 662186), (49, 432448), (56, 378392), (58, 365344), (64, 331093), (98, 216224), (112, 189196), (116, 182672), (196, 108112), (203, 104384), (224, 94598), (232, 91336), (233, 90944), (392, 54056), (406, 52192), (448, 47299), (464, 45668), (466, 45472), (784, 27028), (812, 26096), (928, 22834), (932, 22736), (1421, 14912), (1568, 13514), (1624, 13048), (1631, 12992), (1856, 11417), (1864, 11368), (2842, 7456), (3136, 6757), (3248, 6524), (3262, 6496), (3728, 5684)]