21993260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1867}}^1$

素因数の和:1926

約数の個数: 48

約数和(自身を含む): 50211840

約数和(自身を除く): 28218580

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1867, 2356, 2945, 3734, 5890, 7468, 9335, 11780, 18670, 35473, 37340, 57877, 70946, 115754, 141892, 177365, 231508, 289385, 354730, 578770, 709460, 1099663, 1157540, 2199326, 4398652, 5498315, 10996630, 21993260]

約数ペア:

[(1, 21993260), (2, 10996630), (4, 5498315), (5, 4398652), (10, 2199326), (19, 1157540), (20, 1099663), (31, 709460), (38, 578770), (62, 354730), (76, 289385), (95, 231508), (124, 177365), (155, 141892), (190, 115754), (310, 70946), (380, 57877), (589, 37340), (620, 35473), (1178, 18670), (1867, 11780), (2356, 9335), (2945, 7468), (3734, 5890)]