21297906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 57103488

約数和(自身を除く): 35805582

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 61, 63, 102, 119, 122, 126, 153, 163, 183, 238, 306, 326, 357, 366, 427, 489, 549, 714, 854, 978, 1037, 1071, 1098, 1141, 1281, 1467, 2074, 2142, 2282, 2562, 2771, 2934, 3111, 3423, 3843, 5542, 6222, 6846, 7259, 7686, 8313, 9333, 9943, 10269, 14518, 16626, 18666, 19397, 19886, 20538, 21777, 24939, 29829, 38794, 43554, 49878, 58191, 59658, 65331, 69601, 89487, 116382, 130662, 139202, 169031, 174573, 178974, 208803, 338062, 349146, 417606, 507093, 626409, 1014186, 1183217, 1252818, 1521279, 2366434, 3042558, 3549651, 7099302, 10648953, 21297906]

約数ペア:

[(1, 21297906), (2, 10648953), (3, 7099302), (6, 3549651), (7, 3042558), (9, 2366434), (14, 1521279), (17, 1252818), (18, 1183217), (21, 1014186), (34, 626409), (42, 507093), (51, 417606), (61, 349146), (63, 338062), (102, 208803), (119, 178974), (122, 174573), (126, 169031), (153, 139202), (163, 130662), (183, 116382), (238, 89487), (306, 69601), (326, 65331), (357, 59658), (366, 58191), (427, 49878), (489, 43554), (549, 38794), (714, 29829), (854, 24939), (978, 21777), (1037, 20538), (1071, 19886), (1098, 19397), (1141, 18666), (1281, 16626), (1467, 14518), (2074, 10269), (2142, 9943), (2282, 9333), (2562, 8313), (2771, 7686), (2934, 7259), (3111, 6846), (3423, 6222), (3843, 5542)]