20219116

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19697684

約数列:

[1, 2, 4, 19, 23, 38, 43, 46, 76, 86, 92, 172, 269, 437, 538, 817, 874, 989, 1076, 1634, 1748, 1978, 3268, 3956, 5111, 6187, 10222, 11567, 12374, 18791, 20444, 23134, 24748, 37582, 46268, 75164, 117553, 219773, 235106, 266041, 439546, 470212, 532082, 879092, 1064164, 5054779, 10109558, 20219116]

約数ペア:

[(1, 20219116), (2, 10109558), (4, 5054779), (19, 1064164), (23, 879092), (38, 532082), (43, 470212), (46, 439546), (76, 266041), (86, 235106), (92, 219773), (172, 117553), (269, 75164), (437, 46268), (538, 37582), (817, 24748), (874, 23134), (989, 20444), (1076, 18791), (1634, 12374), (1748, 11567), (1978, 10222), (3268, 6187), (3956, 5111)]