22120515

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 40225536

約数和(自身を除く): 18105021

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 101, 155, 157, 279, 303, 465, 471, 505, 785, 909, 1395, 1413, 1515, 2355, 3131, 4545, 4867, 7065, 9393, 14601, 15655, 15857, 24335, 28179, 43803, 46965, 47571, 73005, 79285, 140895, 142713, 219015, 237855, 491567, 713565, 1474701, 2457835, 4424103, 7373505, 22120515]

約数ペア:

[(1, 22120515), (3, 7373505), (5, 4424103), (9, 2457835), (15, 1474701), (31, 713565), (45, 491567), (93, 237855), (101, 219015), (155, 142713), (157, 140895), (279, 79285), (303, 73005), (465, 47571), (471, 46965), (505, 43803), (785, 28179), (909, 24335), (1395, 15857), (1413, 15655), (1515, 14601), (2355, 9393), (3131, 7065), (4545, 4867)]