21911296

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 49448448

約数和(自身を除く): 27537152

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 251, 256, 341, 352, 496, 502, 682, 704, 992, 1004, 1364, 1408, 1984, 2008, 2728, 2761, 2816, 3968, 4016, 5456, 5522, 7781, 7936, 8032, 10912, 11044, 15562, 16064, 21824, 22088, 31124, 32128, 43648, 44176, 62248, 64256, 85591, 87296, 88352, 124496, 171182, 176704, 248992, 342364, 353408, 497984, 684728, 706816, 995968, 1369456, 1991936, 2738912, 5477824, 10955648, 21911296]

約数ペア:

[(1, 21911296), (2, 10955648), (4, 5477824), (8, 2738912), (11, 1991936), (16, 1369456), (22, 995968), (31, 706816), (32, 684728), (44, 497984), (62, 353408), (64, 342364), (88, 248992), (124, 176704), (128, 171182), (176, 124496), (248, 88352), (251, 87296), (256, 85591), (341, 64256), (352, 62248), (496, 44176), (502, 43648), (682, 32128), (704, 31124), (992, 22088), (1004, 21824), (1364, 16064), (1408, 15562), (1984, 11044), (2008, 10912), (2728, 8032), (2761, 7936), (2816, 7781), (3968, 5522), (4016, 5456)]