21472496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{887}}^1$

素因数の和:1001

約数の個数: 40

約数和(自身を含む): 44595360

約数和(自身を除く): 23122864

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 136, 178, 272, 356, 712, 887, 1424, 1513, 1774, 3026, 3548, 6052, 7096, 12104, 14192, 15079, 24208, 30158, 60316, 78943, 120632, 157886, 241264, 315772, 631544, 1263088, 1342031, 2684062, 5368124, 10736248, 21472496]

約数ペア:

[(1, 21472496), (2, 10736248), (4, 5368124), (8, 2684062), (16, 1342031), (17, 1263088), (34, 631544), (68, 315772), (89, 241264), (136, 157886), (178, 120632), (272, 78943), (356, 60316), (712, 30158), (887, 24208), (1424, 15079), (1513, 14192), (1774, 12104), (3026, 7096), (3548, 6052)]