21698432

素因数分解:

$2^7\times 7^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:479

約数の個数: 64

約数和(自身を含む): 50339040

約数和(自身を除く): 28640608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 397, 427, 448, 488, 794, 854, 896, 976, 1588, 1708, 1952, 2779, 3176, 3416, 3904, 5558, 6352, 6832, 7808, 11116, 12704, 13664, 22232, 24217, 25408, 27328, 44464, 48434, 50816, 54656, 88928, 96868, 169519, 177856, 193736, 339038, 355712, 387472, 678076, 774944, 1356152, 1549888, 2712304, 3099776, 5424608, 10849216, 21698432]

約数ペア:

[(1, 21698432), (2, 10849216), (4, 5424608), (7, 3099776), (8, 2712304), (14, 1549888), (16, 1356152), (28, 774944), (32, 678076), (56, 387472), (61, 355712), (64, 339038), (112, 193736), (122, 177856), (128, 169519), (224, 96868), (244, 88928), (397, 54656), (427, 50816), (448, 48434), (488, 44464), (794, 27328), (854, 25408), (896, 24217), (976, 22232), (1588, 13664), (1708, 12704), (1952, 11116), (2779, 7808), (3176, 6832), (3416, 6352), (3904, 5558)]