19876696

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 24938984

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 53, 56, 74, 106, 148, 181, 212, 259, 296, 362, 371, 424, 518, 724, 742, 1036, 1267, 1448, 1484, 1961, 2072, 2534, 2968, 3922, 5068, 6697, 7844, 9593, 10136, 13394, 13727, 15688, 19186, 26788, 27454, 38372, 46879, 53576, 54908, 67151, 76744, 93758, 109816, 134302, 187516, 268604, 354941, 375032, 537208, 709882, 1419764, 2484587, 2839528, 4969174, 9938348, 19876696]

約数ペア:

[(1, 19876696), (2, 9938348), (4, 4969174), (7, 2839528), (8, 2484587), (14, 1419764), (28, 709882), (37, 537208), (53, 375032), (56, 354941), (74, 268604), (106, 187516), (148, 134302), (181, 109816), (212, 93758), (259, 76744), (296, 67151), (362, 54908), (371, 53576), (424, 46879), (518, 38372), (724, 27454), (742, 26788), (1036, 19186), (1267, 15688), (1448, 13727), (1484, 13394), (1961, 10136), (2072, 9593), (2534, 7844), (2968, 6697), (3922, 5068)]