21433648

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{547}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 43489280

約数和(自身を除く): 22055632

約数列:

[1, 2, 4, 8, 16, 31, 62, 79, 124, 158, 248, 316, 496, 547, 632, 1094, 1264, 2188, 2449, 4376, 4898, 8752, 9796, 16957, 19592, 33914, 39184, 43213, 67828, 86426, 135656, 172852, 271312, 345704, 691408, 1339603, 2679206, 5358412, 10716824, 21433648]

約数ペア:

[(1, 21433648), (2, 10716824), (4, 5358412), (8, 2679206), (16, 1339603), (31, 691408), (62, 345704), (79, 271312), (124, 172852), (158, 135656), (248, 86426), (316, 67828), (496, 43213), (547, 39184), (632, 33914), (1094, 19592), (1264, 16957), (2188, 9796), (2449, 8752), (4376, 4898)]