20935908

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 66777984

約数和(自身を除く): 45842076

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 51, 54, 63, 68, 81, 84, 102, 108, 119, 126, 153, 162, 181, 189, 204, 238, 243, 252, 306, 324, 357, 362, 378, 459, 476, 486, 543, 567, 612, 714, 724, 756, 918, 972, 1071, 1086, 1134, 1267, 1377, 1428, 1629, 1701, 1836, 2142, 2172, 2268, 2534, 2754, 3077, 3213, 3258, 3402, 3801, 4131, 4284, 4887, 5068, 5508, 6154, 6426, 6516, 6804, 7602, 8262, 9231, 9639, 9774, 11403, 12308, 12852, 14661, 15204, 16524, 18462, 19278, 19548, 21539, 22806, 27693, 28917, 29322, 34209, 36924, 38556, 43078, 43983, 45612, 55386, 57834, 58644, 64617, 68418, 83079, 86156, 87966, 102627, 110772, 115668, 129234, 136836, 166158, 175932, 193851, 205254, 249237, 258468, 307881, 332316, 387702, 410508, 498474, 581553, 615762, 747711, 775404, 996948, 1163106, 1231524, 1495422, 1744659, 2326212, 2990844, 3489318, 5233977, 6978636, 10467954, 20935908]

約数ペア:

[(1, 20935908), (2, 10467954), (3, 6978636), (4, 5233977), (6, 3489318), (7, 2990844), (9, 2326212), (12, 1744659), (14, 1495422), (17, 1231524), (18, 1163106), (21, 996948), (27, 775404), (28, 747711), (34, 615762), (36, 581553), (42, 498474), (51, 410508), (54, 387702), (63, 332316), (68, 307881), (81, 258468), (84, 249237), (102, 205254), (108, 193851), (119, 175932), (126, 166158), (153, 136836), (162, 129234), (181, 115668), (189, 110772), (204, 102627), (238, 87966), (243, 86156), (252, 83079), (306, 68418), (324, 64617), (357, 58644), (362, 57834), (378, 55386), (459, 45612), (476, 43983), (486, 43078), (543, 38556), (567, 36924), (612, 34209), (714, 29322), (724, 28917), (756, 27693), (918, 22806), (972, 21539), (1071, 19548), (1086, 19278), (1134, 18462), (1267, 16524), (1377, 15204), (1428, 14661), (1629, 12852), (1701, 12308), (1836, 11403), (2142, 9774), (2172, 9639), (2268, 9231), (2534, 8262), (2754, 7602), (3077, 6804), (3213, 6516), (3258, 6426), (3402, 6154), (3801, 5508), (4131, 5068), (4284, 4887)]