21850908

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 53114880

約数和(自身を除く): 31263972

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 151, 186, 302, 372, 389, 453, 604, 778, 906, 1167, 1556, 1812, 2334, 4668, 4681, 9362, 12059, 14043, 18724, 24118, 28086, 36177, 48236, 56172, 58739, 72354, 117478, 144708, 176217, 234956, 352434, 704868, 1820909, 3641818, 5462727, 7283636, 10925454, 21850908]

約数ペア:

[(1, 21850908), (2, 10925454), (3, 7283636), (4, 5462727), (6, 3641818), (12, 1820909), (31, 704868), (62, 352434), (93, 234956), (124, 176217), (151, 144708), (186, 117478), (302, 72354), (372, 58739), (389, 56172), (453, 48236), (604, 36177), (778, 28086), (906, 24118), (1167, 18724), (1556, 14043), (1812, 12059), (2334, 9362), (4668, 4681)]