20637764

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 43080576

約数和(自身を除く): 22442812

約数列:

[1, 2, 4, 7, 14, 28, 43, 61, 86, 122, 172, 244, 281, 301, 427, 562, 602, 854, 1124, 1204, 1708, 1967, 2623, 3934, 5246, 7868, 10492, 12083, 17141, 18361, 24166, 34282, 36722, 48332, 68564, 73444, 84581, 119987, 169162, 239974, 338324, 479948, 737063, 1474126, 2948252, 5159441, 10318882, 20637764]

約数ペア:

[(1, 20637764), (2, 10318882), (4, 5159441), (7, 2948252), (14, 1474126), (28, 737063), (43, 479948), (61, 338324), (86, 239974), (122, 169162), (172, 119987), (244, 84581), (281, 73444), (301, 68564), (427, 48332), (562, 36722), (602, 34282), (854, 24166), (1124, 18361), (1204, 17141), (1708, 12083), (1967, 10492), (2623, 7868), (3934, 5246)]