20194271979

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{3733}}^1$

素因数の和:3948

約数の個数: 64

約数和(自身を含む): 32359262208

約数和(自身を除く): 12164990229

約数列:

[1, 3, 7, 21, 41, 61, 103, 123, 183, 287, 309, 427, 721, 861, 1281, 2163, 2501, 3733, 4223, 6283, 7503, 11199, 12669, 17507, 18849, 26131, 29561, 43981, 52521, 78393, 88683, 131943, 153053, 227713, 257603, 384499, 459159, 683139, 772809, 1071371, 1153497, 1593991, 1803221, 2691493, 3214113, 4781973, 5409663, 8074479, 9336233, 15764459, 23454439, 28008699, 47293377, 65353631, 70363317, 110351213, 164181073, 196060893, 331053639, 492543219, 961631999, 2884895997, 6731423993, 20194271979]

約数ペア:

[(1, 20194271979), (3, 6731423993), (7, 2884895997), (21, 961631999), (41, 492543219), (61, 331053639), (103, 196060893), (123, 164181073), (183, 110351213), (287, 70363317), (309, 65353631), (427, 47293377), (721, 28008699), (861, 23454439), (1281, 15764459), (2163, 9336233), (2501, 8074479), (3733, 5409663), (4223, 4781973), (6283, 3214113), (7503, 2691493), (11199, 1803221), (12669, 1593991), (17507, 1153497), (18849, 1071371), (26131, 772809), (29561, 683139), (43981, 459159), (52521, 384499), (78393, 257603), (88683, 227713), (131943, 153053)]