21531294

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:585

約数の個数: 48

約数和(自身を含む): 49542480

約数和(自身を除く): 28011186

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 157, 171, 314, 342, 401, 471, 802, 942, 1203, 1413, 2406, 2826, 2983, 3609, 5966, 7218, 7619, 8949, 15238, 17898, 22857, 26847, 45714, 53694, 62957, 68571, 125914, 137142, 188871, 377742, 566613, 1133226, 1196183, 2392366, 3588549, 7177098, 10765647, 21531294]

約数ペア:

[(1, 21531294), (2, 10765647), (3, 7177098), (6, 3588549), (9, 2392366), (18, 1196183), (19, 1133226), (38, 566613), (57, 377742), (114, 188871), (157, 137142), (171, 125914), (314, 68571), (342, 62957), (401, 53694), (471, 45714), (802, 26847), (942, 22857), (1203, 17898), (1413, 15238), (2406, 8949), (2826, 7619), (2983, 7218), (3609, 5966)]