19987203603

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1\times {\mathrm{5711}}^1$

素因数の和:6315

約数の個数: 32

約数和(自身を含む): 28462758912

約数和(自身を除く): 8475555309

約数列:

[1, 3, 17, 51, 163, 421, 489, 1263, 2771, 5711, 7157, 8313, 17133, 21471, 68623, 97087, 205869, 291261, 930893, 1166591, 2404331, 2792679, 3499773, 7212993, 15825181, 40873627, 47475543, 122620881, 391905953, 1175717859, 6662401201, 19987203603]

約数ペア:

[(1, 19987203603), (3, 6662401201), (17, 1175717859), (51, 391905953), (163, 122620881), (421, 47475543), (489, 40873627), (1263, 15825181), (2771, 7212993), (5711, 3499773), (7157, 2792679), (8313, 2404331), (17133, 1166591), (21471, 930893), (68623, 291261), (97087, 205869)]