21855470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 51020928

約数和(自身を除く): 29165458

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 47, 49, 65, 70, 73, 91, 94, 98, 130, 146, 182, 235, 245, 329, 365, 455, 470, 490, 511, 611, 637, 658, 730, 910, 949, 1022, 1222, 1274, 1645, 1898, 2303, 2555, 3055, 3185, 3290, 3431, 3577, 4277, 4606, 4745, 5110, 6110, 6370, 6643, 6862, 7154, 8554, 9490, 11515, 13286, 17155, 17885, 21385, 23030, 24017, 29939, 33215, 34310, 35770, 42770, 44603, 46501, 48034, 59878, 66430, 89206, 93002, 120085, 149695, 168119, 223015, 232505, 240170, 299390, 312221, 336238, 446030, 465010, 624442, 840595, 1561105, 1681190, 2185547, 3122210, 4371094, 10927735, 21855470]

約数ペア:

[(1, 21855470), (2, 10927735), (5, 4371094), (7, 3122210), (10, 2185547), (13, 1681190), (14, 1561105), (26, 840595), (35, 624442), (47, 465010), (49, 446030), (65, 336238), (70, 312221), (73, 299390), (91, 240170), (94, 232505), (98, 223015), (130, 168119), (146, 149695), (182, 120085), (235, 93002), (245, 89206), (329, 66430), (365, 59878), (455, 48034), (470, 46501), (490, 44603), (511, 42770), (611, 35770), (637, 34310), (658, 33215), (730, 29939), (910, 24017), (949, 23030), (1022, 21385), (1222, 17885), (1274, 17155), (1645, 13286), (1898, 11515), (2303, 9490), (2555, 8554), (3055, 7154), (3185, 6862), (3290, 6643), (3431, 6370), (3577, 6110), (4277, 5110), (4606, 4745)]