21067750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 44209152

約数和(自身を除く): 23141402

約数列:

[1, 2, 5, 10, 11, 22, 25, 47, 50, 55, 94, 110, 125, 163, 235, 250, 275, 326, 470, 517, 550, 815, 1034, 1175, 1375, 1630, 1793, 2350, 2585, 2750, 3586, 4075, 5170, 5875, 7661, 8150, 8965, 11750, 12925, 15322, 17930, 20375, 25850, 38305, 40750, 44825, 64625, 76610, 84271, 89650, 129250, 168542, 191525, 224125, 383050, 421355, 448250, 842710, 957625, 1915250, 2106775, 4213550, 10533875, 21067750]

約数ペア:

[(1, 21067750), (2, 10533875), (5, 4213550), (10, 2106775), (11, 1915250), (22, 957625), (25, 842710), (47, 448250), (50, 421355), (55, 383050), (94, 224125), (110, 191525), (125, 168542), (163, 129250), (235, 89650), (250, 84271), (275, 76610), (326, 64625), (470, 44825), (517, 40750), (550, 38305), (815, 25850), (1034, 20375), (1175, 17930), (1375, 15322), (1630, 12925), (1793, 11750), (2350, 8965), (2585, 8150), (2750, 7661), (3586, 5875), (4075, 5170)]