21000643196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1\times {\mathrm{3463}}^1$

素因数の和:4458

約数の個数: 48

約数和(自身を含む): 39921907200

約数和(自身を除く): 18921264004

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 839, 1678, 1807, 3356, 3463, 3614, 6926, 7228, 10907, 13852, 21814, 43628, 45019, 90038, 116621, 180076, 233242, 466484, 481357, 962714, 1516073, 1925428, 2905457, 3032146, 5810914, 6064292, 6257641, 11621828, 12515282, 25030564, 37770941, 75541882, 151083764, 403858523, 807717046, 1615434092, 5250160799, 10500321598, 21000643196]

約数ペア:

[(1, 21000643196), (2, 10500321598), (4, 5250160799), (13, 1615434092), (26, 807717046), (52, 403858523), (139, 151083764), (278, 75541882), (556, 37770941), (839, 25030564), (1678, 12515282), (1807, 11621828), (3356, 6257641), (3463, 6064292), (3614, 5810914), (6926, 3032146), (7228, 2905457), (10907, 1925428), (13852, 1516073), (21814, 962714), (43628, 481357), (45019, 466484), (90038, 233242), (116621, 180076)]