21813088

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2051

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 26570912

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1999, 2728, 3998, 5456, 7996, 10912, 15992, 21989, 31984, 43978, 61969, 63968, 87956, 123938, 175912, 247876, 351824, 495752, 681659, 703648, 991504, 1363318, 1983008, 2726636, 5453272, 10906544, 21813088]

約数ペア:

[(1, 21813088), (2, 10906544), (4, 5453272), (8, 2726636), (11, 1983008), (16, 1363318), (22, 991504), (31, 703648), (32, 681659), (44, 495752), (62, 351824), (88, 247876), (124, 175912), (176, 123938), (248, 87956), (341, 63968), (352, 61969), (496, 43978), (682, 31984), (992, 21989), (1364, 15992), (1999, 10912), (2728, 7996), (3998, 5456)]