21090789832

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2749}}^1\times {\mathrm{8059}}^1$

素因数の和:10838

約数の個数: 64

約数和(自身を含む): 47876400000

約数和(自身を除く): 26785610168

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 2749, 5498, 8059, 10996, 16118, 19243, 21992, 32236, 38486, 46733, 56413, 64472, 76972, 93466, 112826, 137003, 153944, 186932, 225652, 274006, 327131, 373864, 451304, 548012, 654262, 959021, 1096024, 1308524, 1918042, 2617048, 3836084, 7672168, 22154191, 44308382, 88616764, 155079337, 177233528, 310158674, 376621247, 620317348, 753242494, 1240634696, 1506484988, 2636348729, 3012969976, 5272697458, 10545394916, 21090789832]

約数ペア:

[(1, 21090789832), (2, 10545394916), (4, 5272697458), (7, 3012969976), (8, 2636348729), (14, 1506484988), (17, 1240634696), (28, 753242494), (34, 620317348), (56, 376621247), (68, 310158674), (119, 177233528), (136, 155079337), (238, 88616764), (476, 44308382), (952, 22154191), (2749, 7672168), (5498, 3836084), (8059, 2617048), (10996, 1918042), (16118, 1308524), (19243, 1096024), (21992, 959021), (32236, 654262), (38486, 548012), (46733, 451304), (56413, 373864), (64472, 327131), (76972, 274006), (93466, 225652), (112826, 186932), (137003, 153944)]