209950461

素因数分解:

$3^4\times 7^1\times {\mathrm{379}}^1\times {\mathrm{977}}^1$

素因数の和:1375

約数の個数: 40

約数和(自身を含む): 359747520

約数和(自身を除く): 149797059

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 379, 567, 977, 1137, 2653, 2931, 3411, 6839, 7959, 8793, 10233, 20517, 23877, 26379, 30699, 61551, 71631, 79137, 184653, 214893, 370283, 553959, 1110849, 2591981, 3332547, 7775943, 9997641, 23327829, 29992923, 69983487, 209950461]

約数ペア:

[(1, 209950461), (3, 69983487), (7, 29992923), (9, 23327829), (21, 9997641), (27, 7775943), (63, 3332547), (81, 2591981), (189, 1110849), (379, 553959), (567, 370283), (977, 214893), (1137, 184653), (2653, 79137), (2931, 71631), (3411, 61551), (6839, 30699), (7959, 26379), (8793, 23877), (10233, 20517)]