20929356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 108

約数和(自身を含む): 63608272

約数和(自身を除く): 42678916

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 157, 161, 207, 252, 276, 314, 322, 414, 471, 483, 529, 628, 644, 828, 942, 966, 1058, 1099, 1413, 1449, 1587, 1884, 1932, 2116, 2198, 2826, 2898, 3174, 3297, 3611, 3703, 4396, 4761, 5652, 5796, 6348, 6594, 7222, 7406, 9522, 9891, 10833, 11109, 13188, 14444, 14812, 19044, 19782, 21666, 22218, 25277, 32499, 33327, 39564, 43332, 44436, 50554, 64998, 66654, 75831, 83053, 101108, 129996, 133308, 151662, 166106, 227493, 249159, 303324, 332212, 454986, 498318, 581371, 747477, 909972, 996636, 1162742, 1494954, 1744113, 2325484, 2989908, 3488226, 5232339, 6976452, 10464678, 20929356]

約数ペア:

[(1, 20929356), (2, 10464678), (3, 6976452), (4, 5232339), (6, 3488226), (7, 2989908), (9, 2325484), (12, 1744113), (14, 1494954), (18, 1162742), (21, 996636), (23, 909972), (28, 747477), (36, 581371), (42, 498318), (46, 454986), (63, 332212), (69, 303324), (84, 249159), (92, 227493), (126, 166106), (138, 151662), (157, 133308), (161, 129996), (207, 101108), (252, 83053), (276, 75831), (314, 66654), (322, 64998), (414, 50554), (471, 44436), (483, 43332), (529, 39564), (628, 33327), (644, 32499), (828, 25277), (942, 22218), (966, 21666), (1058, 19782), (1099, 19044), (1413, 14812), (1449, 14444), (1587, 13188), (1884, 11109), (1932, 10833), (2116, 9891), (2198, 9522), (2826, 7406), (2898, 7222), (3174, 6594), (3297, 6348), (3611, 5796), (3703, 5652), (4396, 4761)]