21497742

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2797}}^1$

素因数の和:2873

約数の個数: 48

約数和(自身を含む): 54124512

約数和(自身を除く): 32626770

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 61, 63, 122, 126, 183, 366, 427, 549, 854, 1098, 1281, 2562, 2797, 3843, 5594, 7686, 8391, 16782, 19579, 25173, 39158, 50346, 58737, 117474, 170617, 176211, 341234, 352422, 511851, 1023702, 1194319, 1535553, 2388638, 3071106, 3582957, 7165914, 10748871, 21497742]

約数ペア:

[(1, 21497742), (2, 10748871), (3, 7165914), (6, 3582957), (7, 3071106), (9, 2388638), (14, 1535553), (18, 1194319), (21, 1023702), (42, 511851), (61, 352422), (63, 341234), (122, 176211), (126, 170617), (183, 117474), (366, 58737), (427, 50346), (549, 39158), (854, 25173), (1098, 19579), (1281, 16782), (2562, 8391), (2797, 7686), (3843, 5594)]