21165612

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:407

約数の個数: 96

約数和(自身を含む): 58931712

約数和(自身を除く): 37766100

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 23, 26, 34, 39, 46, 51, 52, 68, 69, 78, 92, 102, 138, 156, 204, 221, 276, 299, 347, 391, 442, 598, 663, 694, 782, 884, 897, 1041, 1173, 1196, 1326, 1388, 1564, 1794, 2082, 2346, 2652, 3588, 4164, 4511, 4692, 5083, 5899, 7981, 9022, 10166, 11798, 13533, 15249, 15962, 17697, 18044, 20332, 23596, 23943, 27066, 30498, 31924, 35394, 47886, 54132, 60996, 70788, 76687, 95772, 103753, 135677, 153374, 207506, 230061, 271354, 306748, 311259, 407031, 415012, 460122, 542708, 622518, 814062, 920244, 1245036, 1628124, 1763801, 3527602, 5291403, 7055204, 10582806, 21165612]

約数ペア:

[(1, 21165612), (2, 10582806), (3, 7055204), (4, 5291403), (6, 3527602), (12, 1763801), (13, 1628124), (17, 1245036), (23, 920244), (26, 814062), (34, 622518), (39, 542708), (46, 460122), (51, 415012), (52, 407031), (68, 311259), (69, 306748), (78, 271354), (92, 230061), (102, 207506), (138, 153374), (156, 135677), (204, 103753), (221, 95772), (276, 76687), (299, 70788), (347, 60996), (391, 54132), (442, 47886), (598, 35394), (663, 31924), (694, 30498), (782, 27066), (884, 23943), (897, 23596), (1041, 20332), (1173, 18044), (1196, 17697), (1326, 15962), (1388, 15249), (1564, 13533), (1794, 11798), (2082, 10166), (2346, 9022), (2652, 7981), (3588, 5899), (4164, 5083), (4511, 4692)]