21265088

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 56

約数和(自身を含む): 46299120

約数和(自身を除く): 25034032

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 208, 244, 416, 419, 488, 793, 832, 838, 976, 1586, 1676, 1952, 3172, 3352, 3904, 5447, 6344, 6704, 10894, 12688, 13408, 21788, 25376, 25559, 26816, 43576, 50752, 51118, 87152, 102236, 174304, 204472, 332267, 348608, 408944, 664534, 817888, 1329068, 1635776, 2658136, 5316272, 10632544, 21265088]

約数ペア:

[(1, 21265088), (2, 10632544), (4, 5316272), (8, 2658136), (13, 1635776), (16, 1329068), (26, 817888), (32, 664534), (52, 408944), (61, 348608), (64, 332267), (104, 204472), (122, 174304), (208, 102236), (244, 87152), (416, 51118), (419, 50752), (488, 43576), (793, 26816), (832, 25559), (838, 25376), (976, 21788), (1586, 13408), (1676, 12688), (1952, 10894), (3172, 6704), (3352, 6344), (3904, 5447)]