21262528

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1581

約数の個数: 56

約数和(自身を含む): 49808384

約数和(自身を除く): 28545856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1531, 1736, 1984, 3062, 3472, 6124, 6944, 10717, 12248, 13888, 21434, 24496, 42868, 47461, 48992, 85736, 94922, 97984, 171472, 189844, 332227, 342944, 379688, 664454, 685888, 759376, 1328908, 1518752, 2657816, 3037504, 5315632, 10631264, 21262528]

約数ペア:

[(1, 21262528), (2, 10631264), (4, 5315632), (7, 3037504), (8, 2657816), (14, 1518752), (16, 1328908), (28, 759376), (31, 685888), (32, 664454), (56, 379688), (62, 342944), (64, 332227), (112, 189844), (124, 171472), (217, 97984), (224, 94922), (248, 85736), (434, 48992), (448, 47461), (496, 42868), (868, 24496), (992, 21434), (1531, 13888), (1736, 12248), (1984, 10717), (3062, 6944), (3472, 6124)]