19219564

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 44464560

約数和(自身を除く): 25244996

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 49, 52, 76, 91, 98, 133, 182, 196, 247, 266, 364, 397, 494, 532, 637, 794, 931, 988, 1274, 1588, 1729, 1862, 2548, 2779, 3458, 3724, 5161, 5558, 6916, 7543, 10322, 11116, 12103, 15086, 19453, 20644, 24206, 30172, 36127, 38906, 48412, 52801, 72254, 77812, 98059, 105602, 144508, 196118, 211204, 252889, 369607, 392236, 505778, 686413, 739214, 1011556, 1372826, 1478428, 2745652, 4804891, 9609782, 19219564]

約数ペア:

[(1, 19219564), (2, 9609782), (4, 4804891), (7, 2745652), (13, 1478428), (14, 1372826), (19, 1011556), (26, 739214), (28, 686413), (38, 505778), (49, 392236), (52, 369607), (76, 252889), (91, 211204), (98, 196118), (133, 144508), (182, 105602), (196, 98059), (247, 77812), (266, 72254), (364, 52801), (397, 48412), (494, 38906), (532, 36127), (637, 30172), (794, 24206), (931, 20644), (988, 19453), (1274, 15086), (1588, 12103), (1729, 11116), (1862, 10322), (2548, 7543), (2779, 6916), (3458, 5558), (3724, 5161)]