19956768

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{15991}}^1$

素因数の和:16017

約数の個数: 48

約数和(自身を含む): 56419776

約数和(自身を除く): 36463008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 15991, 31982, 47973, 63964, 95946, 127928, 191892, 207883, 255856, 383784, 415766, 511712, 623649, 767568, 831532, 1247298, 1535136, 1663064, 2494596, 3326128, 4989192, 6652256, 9978384, 19956768]

約数ペア:

[(1, 19956768), (2, 9978384), (3, 6652256), (4, 4989192), (6, 3326128), (8, 2494596), (12, 1663064), (13, 1535136), (16, 1247298), (24, 831532), (26, 767568), (32, 623649), (39, 511712), (48, 415766), (52, 383784), (78, 255856), (96, 207883), (104, 191892), (156, 127928), (208, 95946), (312, 63964), (416, 47973), (624, 31982), (1248, 15991)]