21032050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 72

約数和(自身を含む): 44930160

約数和(自身を除く): 23898110

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 131, 169, 190, 247, 262, 325, 338, 475, 494, 650, 655, 845, 950, 1235, 1310, 1690, 1703, 2470, 2489, 3211, 3275, 3406, 4225, 4978, 6175, 6422, 6550, 8450, 8515, 12350, 12445, 16055, 17030, 22139, 24890, 32110, 32357, 42575, 44278, 62225, 64714, 80275, 85150, 110695, 124450, 160550, 161785, 221390, 323570, 420641, 553475, 808925, 841282, 1106950, 1617850, 2103205, 4206410, 10516025, 21032050]

約数ペア:

[(1, 21032050), (2, 10516025), (5, 4206410), (10, 2103205), (13, 1617850), (19, 1106950), (25, 841282), (26, 808925), (38, 553475), (50, 420641), (65, 323570), (95, 221390), (130, 161785), (131, 160550), (169, 124450), (190, 110695), (247, 85150), (262, 80275), (325, 64714), (338, 62225), (475, 44278), (494, 42575), (650, 32357), (655, 32110), (845, 24890), (950, 22139), (1235, 17030), (1310, 16055), (1690, 12445), (1703, 12350), (2470, 8515), (2489, 8450), (3211, 6550), (3275, 6422), (3406, 6175), (4225, 4978)]