21378528

素因数分解:

$2^5\times 3^2\times {\mathrm{74231}}^1$

素因数の和:74247

約数の個数: 36

約数和(自身を含む): 60796008

約数和(自身を除く): 39417480

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 74231, 148462, 222693, 296924, 445386, 593848, 668079, 890772, 1187696, 1336158, 1781544, 2375392, 2672316, 3563088, 5344632, 7126176, 10689264, 21378528]

約数ペア:

[(1, 21378528), (2, 10689264), (3, 7126176), (4, 5344632), (6, 3563088), (8, 2672316), (9, 2375392), (12, 1781544), (16, 1336158), (18, 1187696), (24, 890772), (32, 668079), (36, 593848), (48, 445386), (72, 296924), (96, 222693), (144, 148462), (288, 74231)]