21597452

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 20335348

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 89, 103, 124, 178, 206, 356, 412, 589, 1178, 1691, 1957, 2356, 2759, 3193, 3382, 3914, 5518, 6386, 6764, 7828, 9167, 11036, 12772, 18334, 36668, 52421, 60667, 104842, 121334, 174173, 209684, 242668, 284177, 348346, 568354, 696692, 1136708, 5399363, 10798726, 21597452]

約数ペア:

[(1, 21597452), (2, 10798726), (4, 5399363), (19, 1136708), (31, 696692), (38, 568354), (62, 348346), (76, 284177), (89, 242668), (103, 209684), (124, 174173), (178, 121334), (206, 104842), (356, 60667), (412, 52421), (589, 36668), (1178, 18334), (1691, 12772), (1957, 11036), (2356, 9167), (2759, 7828), (3193, 6764), (3382, 6386), (3914, 5518)]