21718230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 54217728

約数和(自身を除く): 32499498

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 73, 94, 141, 146, 211, 219, 235, 282, 365, 422, 438, 470, 633, 705, 730, 1055, 1095, 1266, 1410, 2110, 2190, 3165, 3431, 6330, 6862, 9917, 10293, 15403, 17155, 19834, 20586, 29751, 30806, 34310, 46209, 49585, 51465, 59502, 77015, 92418, 99170, 102930, 148755, 154030, 231045, 297510, 462090, 723941, 1447882, 2171823, 3619705, 4343646, 7239410, 10859115, 21718230]

約数ペア:

[(1, 21718230), (2, 10859115), (3, 7239410), (5, 4343646), (6, 3619705), (10, 2171823), (15, 1447882), (30, 723941), (47, 462090), (73, 297510), (94, 231045), (141, 154030), (146, 148755), (211, 102930), (219, 99170), (235, 92418), (282, 77015), (365, 59502), (422, 51465), (438, 49585), (470, 46209), (633, 34310), (705, 30806), (730, 29751), (1055, 20586), (1095, 19834), (1266, 17155), (1410, 15403), (2110, 10293), (2190, 9917), (3165, 6862), (3431, 6330)]