21901290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31741}}^1$

素因数の和:31774

約数の個数: 32

約数和(自身を含む): 54850176

約数和(自身を除く): 32948886

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31741, 63482, 95223, 158705, 190446, 317410, 476115, 730043, 952230, 1460086, 2190129, 3650215, 4380258, 7300430, 10950645, 21901290]

約数ペア:

[(1, 21901290), (2, 10950645), (3, 7300430), (5, 4380258), (6, 3650215), (10, 2190129), (15, 1460086), (23, 952230), (30, 730043), (46, 476115), (69, 317410), (115, 190446), (138, 158705), (230, 95223), (345, 63482), (690, 31741)]