19986408

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 59099040

約数和(自身を除く): 39112632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 131, 156, 163, 234, 262, 312, 326, 393, 468, 489, 524, 652, 786, 936, 978, 1048, 1179, 1304, 1467, 1572, 1703, 1956, 2119, 2358, 2934, 3144, 3406, 3912, 4238, 4716, 5109, 5868, 6357, 6812, 8476, 9432, 10218, 11736, 12714, 13624, 15327, 16952, 19071, 20436, 21353, 25428, 30654, 38142, 40872, 42706, 50856, 61308, 64059, 76284, 85412, 122616, 128118, 152568, 170824, 192177, 256236, 277589, 384354, 512472, 555178, 768708, 832767, 1110356, 1537416, 1665534, 2220712, 2498301, 3331068, 4996602, 6662136, 9993204, 19986408]

約数ペア:

[(1, 19986408), (2, 9993204), (3, 6662136), (4, 4996602), (6, 3331068), (8, 2498301), (9, 2220712), (12, 1665534), (13, 1537416), (18, 1110356), (24, 832767), (26, 768708), (36, 555178), (39, 512472), (52, 384354), (72, 277589), (78, 256236), (104, 192177), (117, 170824), (131, 152568), (156, 128118), (163, 122616), (234, 85412), (262, 76284), (312, 64059), (326, 61308), (393, 50856), (468, 42706), (489, 40872), (524, 38142), (652, 30654), (786, 25428), (936, 21353), (978, 20436), (1048, 19071), (1179, 16952), (1304, 15327), (1467, 13624), (1572, 12714), (1703, 11736), (1956, 10218), (2119, 9432), (2358, 8476), (2934, 6812), (3144, 6357), (3406, 5868), (3912, 5109), (4238, 4716)]