21519108

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^2\times {\mathrm{131}}^1$

素因数の和:176

約数の個数: 108

約数和(自身を含む): 61549488

約数和(自身を除く): 40030380

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 131, 156, 162, 169, 234, 243, 262, 324, 338, 351, 393, 468, 486, 507, 524, 676, 702, 786, 972, 1014, 1053, 1179, 1404, 1521, 1572, 1703, 2028, 2106, 2358, 3042, 3159, 3406, 3537, 4212, 4563, 4716, 5109, 6084, 6318, 6812, 7074, 9126, 10218, 10611, 12636, 13689, 14148, 15327, 18252, 20436, 21222, 22139, 27378, 30654, 31833, 41067, 42444, 44278, 45981, 54756, 61308, 63666, 66417, 82134, 88556, 91962, 127332, 132834, 137943, 164268, 183924, 199251, 265668, 275886, 398502, 413829, 551772, 597753, 797004, 827658, 1195506, 1655316, 1793259, 2391012, 3586518, 5379777, 7173036, 10759554, 21519108]

約数ペア:

[(1, 21519108), (2, 10759554), (3, 7173036), (4, 5379777), (6, 3586518), (9, 2391012), (12, 1793259), (13, 1655316), (18, 1195506), (26, 827658), (27, 797004), (36, 597753), (39, 551772), (52, 413829), (54, 398502), (78, 275886), (81, 265668), (108, 199251), (117, 183924), (131, 164268), (156, 137943), (162, 132834), (169, 127332), (234, 91962), (243, 88556), (262, 82134), (324, 66417), (338, 63666), (351, 61308), (393, 54756), (468, 45981), (486, 44278), (507, 42444), (524, 41067), (676, 31833), (702, 30654), (786, 27378), (972, 22139), (1014, 21222), (1053, 20436), (1179, 18252), (1404, 15327), (1521, 14148), (1572, 13689), (1703, 12636), (2028, 10611), (2106, 10218), (2358, 9126), (3042, 7074), (3159, 6812), (3406, 6318), (3537, 6084), (4212, 5109), (4563, 4716)]