21000895510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1439}}^1\times {\mathrm{10973}}^1$

素因数の和:12445

約数の個数: 64

約数和(自身を含む): 45511372800

約数和(自身を除く): 24510477290

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 1439, 2878, 7195, 10073, 10973, 14390, 20146, 21946, 27341, 50365, 54682, 54865, 76811, 100730, 109730, 136705, 153622, 191387, 208487, 273410, 382774, 384055, 416974, 768110, 956935, 1042435, 1459409, 1913870, 2084870, 2918818, 7297045, 14594090, 15790147, 31580294, 78950735, 110531029, 157901470, 221062058, 300012793, 552655145, 600025586, 1105310290, 1500063965, 2100089551, 3000127930, 4200179102, 10500447755, 21000895510]

約数ペア:

[(1, 21000895510), (2, 10500447755), (5, 4200179102), (7, 3000127930), (10, 2100089551), (14, 1500063965), (19, 1105310290), (35, 600025586), (38, 552655145), (70, 300012793), (95, 221062058), (133, 157901470), (190, 110531029), (266, 78950735), (665, 31580294), (1330, 15790147), (1439, 14594090), (2878, 7297045), (7195, 2918818), (10073, 2084870), (10973, 1913870), (14390, 1459409), (20146, 1042435), (21946, 956935), (27341, 768110), (50365, 416974), (54682, 384055), (54865, 382774), (76811, 273410), (100730, 208487), (109730, 191387), (136705, 153622)]