18919992

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8663}}^1$

素因数の和:8692

約数の個数: 64

約数和(自身を含む): 58222080

約数和(自身を除く): 39302088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 8663, 17326, 25989, 34652, 51978, 60641, 69304, 103956, 112619, 121282, 181923, 207912, 225238, 242564, 337857, 363846, 450476, 485128, 675714, 727692, 788333, 900952, 1351428, 1455384, 1576666, 2364999, 2702856, 3153332, 4729998, 6306664, 9459996, 18919992]

約数ペア:

[(1, 18919992), (2, 9459996), (3, 6306664), (4, 4729998), (6, 3153332), (7, 2702856), (8, 2364999), (12, 1576666), (13, 1455384), (14, 1351428), (21, 900952), (24, 788333), (26, 727692), (28, 675714), (39, 485128), (42, 450476), (52, 363846), (56, 337857), (78, 242564), (84, 225238), (91, 207912), (104, 181923), (156, 121282), (168, 112619), (182, 103956), (273, 69304), (312, 60641), (364, 51978), (546, 34652), (728, 25989), (1092, 17326), (2184, 8663)]