21391872

素因数分解:

$2^9\times 3^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:773

約数の個数: 80

約数和(自身を含む): 60070560

約数和(自身を除く): 38678688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 64, 76, 96, 114, 128, 152, 192, 228, 256, 304, 384, 456, 512, 608, 733, 768, 912, 1216, 1466, 1536, 1824, 2199, 2432, 2932, 3648, 4398, 4864, 5864, 7296, 8796, 9728, 11728, 13927, 14592, 17592, 23456, 27854, 29184, 35184, 41781, 46912, 55708, 70368, 83562, 93824, 111416, 140736, 167124, 187648, 222832, 281472, 334248, 375296, 445664, 562944, 668496, 891328, 1125888, 1336992, 1782656, 2673984, 3565312, 5347968, 7130624, 10695936, 21391872]

約数ペア:

[(1, 21391872), (2, 10695936), (3, 7130624), (4, 5347968), (6, 3565312), (8, 2673984), (12, 1782656), (16, 1336992), (19, 1125888), (24, 891328), (32, 668496), (38, 562944), (48, 445664), (57, 375296), (64, 334248), (76, 281472), (96, 222832), (114, 187648), (128, 167124), (152, 140736), (192, 111416), (228, 93824), (256, 83562), (304, 70368), (384, 55708), (456, 46912), (512, 41781), (608, 35184), (733, 29184), (768, 27854), (912, 23456), (1216, 17592), (1466, 14592), (1536, 13927), (1824, 11728), (2199, 9728), (2432, 8796), (2932, 7296), (3648, 5864), (4398, 4864)]