21388138920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{137209}}^1$

素因数の和:137659

約数の個数: 96

約数和(自身を含む): 69672493800

約数和(自身を除く): 48284354880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 433, 866, 1299, 1732, 2165, 2598, 3464, 3897, 4330, 5196, 6495, 7794, 8660, 10392, 12990, 15588, 17320, 19485, 25980, 31176, 38970, 51960, 77940, 137209, 155880, 274418, 411627, 548836, 686045, 823254, 1097672, 1234881, 1372090, 1646508, 2058135, 2469762, 2744180, 3293016, 4116270, 4939524, 5488360, 6174405, 8232540, 9879048, 12348810, 16465080, 24697620, 49395240, 59411497, 118822994, 178234491, 237645988, 297057485, 356468982, 475291976, 534703473, 594114970, 712937964, 891172455, 1069406946, 1188229940, 1425875928, 1782344910, 2138813892, 2376459880, 2673517365, 3564689820, 4277627784, 5347034730, 7129379640, 10694069460, 21388138920]

約数ペア:

[(1, 21388138920), (2, 10694069460), (3, 7129379640), (4, 5347034730), (5, 4277627784), (6, 3564689820), (8, 2673517365), (9, 2376459880), (10, 2138813892), (12, 1782344910), (15, 1425875928), (18, 1188229940), (20, 1069406946), (24, 891172455), (30, 712937964), (36, 594114970), (40, 534703473), (45, 475291976), (60, 356468982), (72, 297057485), (90, 237645988), (120, 178234491), (180, 118822994), (360, 59411497), (433, 49395240), (866, 24697620), (1299, 16465080), (1732, 12348810), (2165, 9879048), (2598, 8232540), (3464, 6174405), (3897, 5488360), (4330, 4939524), (5196, 4116270), (6495, 3293016), (7794, 2744180), (8660, 2469762), (10392, 2058135), (12990, 1646508), (15588, 1372090), (17320, 1234881), (19485, 1097672), (25980, 823254), (31176, 686045), (38970, 548836), (51960, 411627), (77940, 274418), (137209, 155880)]