21053010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 55655424

約数和(自身を除く): 34602414

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 131, 165, 262, 330, 393, 487, 655, 786, 974, 1310, 1441, 1461, 1965, 2435, 2882, 2922, 3930, 4323, 4870, 5357, 7205, 7305, 8646, 10714, 14410, 14610, 16071, 21615, 26785, 32142, 43230, 53570, 63797, 80355, 127594, 160710, 191391, 318985, 382782, 637970, 701767, 956955, 1403534, 1913910, 2105301, 3508835, 4210602, 7017670, 10526505, 21053010]

約数ペア:

[(1, 21053010), (2, 10526505), (3, 7017670), (5, 4210602), (6, 3508835), (10, 2105301), (11, 1913910), (15, 1403534), (22, 956955), (30, 701767), (33, 637970), (55, 382782), (66, 318985), (110, 191391), (131, 160710), (165, 127594), (262, 80355), (330, 63797), (393, 53570), (487, 43230), (655, 32142), (786, 26785), (974, 21615), (1310, 16071), (1441, 14610), (1461, 14410), (1965, 10714), (2435, 8646), (2882, 7305), (2922, 7205), (3930, 5357), (4323, 4870)]