21095190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7561}}^1$

素因数の和:7605

約数の個数: 48

約数和(自身を含む): 56624256

約数和(自身を除く): 35529066

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7561, 15122, 22683, 37805, 45366, 68049, 75610, 113415, 136098, 226830, 234391, 340245, 468782, 680490, 703173, 1171955, 1406346, 2109519, 2343910, 3515865, 4219038, 7031730, 10547595, 21095190]

約数ペア:

[(1, 21095190), (2, 10547595), (3, 7031730), (5, 4219038), (6, 3515865), (9, 2343910), (10, 2109519), (15, 1406346), (18, 1171955), (30, 703173), (31, 680490), (45, 468782), (62, 340245), (90, 234391), (93, 226830), (155, 136098), (186, 113415), (279, 75610), (310, 68049), (465, 45366), (558, 37805), (930, 22683), (1395, 15122), (2790, 7561)]