19517428

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 41779584

約数和(自身を除く): 22262156

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 131, 238, 262, 313, 476, 524, 626, 917, 1252, 1834, 2191, 2227, 3668, 4382, 4454, 5321, 8764, 8908, 10642, 15589, 21284, 31178, 37247, 41003, 62356, 74494, 82006, 148988, 164012, 287021, 574042, 697051, 1148084, 1394102, 2788204, 4879357, 9758714, 19517428]

約数ペア:

[(1, 19517428), (2, 9758714), (4, 4879357), (7, 2788204), (14, 1394102), (17, 1148084), (28, 697051), (34, 574042), (68, 287021), (119, 164012), (131, 148988), (238, 82006), (262, 74494), (313, 62356), (476, 41003), (524, 37247), (626, 31178), (917, 21284), (1252, 15589), (1834, 10642), (2191, 8908), (2227, 8764), (3668, 5321), (4382, 4454)]