21048516

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 56949984

約数和(自身を除く): 35901468

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 163, 204, 211, 306, 326, 422, 489, 612, 633, 652, 844, 978, 1266, 1467, 1899, 1956, 2532, 2771, 2934, 3587, 3798, 5542, 5868, 7174, 7596, 8313, 10761, 11084, 14348, 16626, 21522, 24939, 32283, 33252, 34393, 43044, 49878, 64566, 68786, 99756, 103179, 129132, 137572, 206358, 309537, 412716, 584681, 619074, 1169362, 1238148, 1754043, 2338724, 3508086, 5262129, 7016172, 10524258, 21048516]

約数ペア:

[(1, 21048516), (2, 10524258), (3, 7016172), (4, 5262129), (6, 3508086), (9, 2338724), (12, 1754043), (17, 1238148), (18, 1169362), (34, 619074), (36, 584681), (51, 412716), (68, 309537), (102, 206358), (153, 137572), (163, 129132), (204, 103179), (211, 99756), (306, 68786), (326, 64566), (422, 49878), (489, 43044), (612, 34393), (633, 33252), (652, 32283), (844, 24939), (978, 21522), (1266, 16626), (1467, 14348), (1899, 11084), (1956, 10761), (2532, 8313), (2771, 7596), (2934, 7174), (3587, 5868), (3798, 5542)]