19909626

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 46227456

約数和(自身を除く): 26317830

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 37, 62, 66, 74, 93, 111, 186, 222, 263, 341, 407, 526, 682, 789, 814, 1023, 1147, 1221, 1578, 2046, 2294, 2442, 2893, 3441, 5786, 6882, 8153, 8679, 9731, 12617, 16306, 17358, 19462, 24459, 25234, 29193, 37851, 48918, 58386, 75702, 89683, 107041, 179366, 214082, 269049, 301661, 321123, 538098, 603322, 642246, 904983, 1809966, 3318271, 6636542, 9954813, 19909626]

約数ペア:

[(1, 19909626), (2, 9954813), (3, 6636542), (6, 3318271), (11, 1809966), (22, 904983), (31, 642246), (33, 603322), (37, 538098), (62, 321123), (66, 301661), (74, 269049), (93, 214082), (111, 179366), (186, 107041), (222, 89683), (263, 75702), (341, 58386), (407, 48918), (526, 37851), (682, 29193), (789, 25234), (814, 24459), (1023, 19462), (1147, 17358), (1221, 16306), (1578, 12617), (2046, 9731), (2294, 8679), (2442, 8153), (2893, 6882), (3441, 5786)]