18995704

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 25457096

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 97, 104, 182, 194, 269, 364, 388, 538, 679, 728, 776, 1076, 1261, 1358, 1883, 2152, 2522, 2716, 3497, 3766, 5044, 5432, 6994, 7532, 8827, 10088, 13988, 15064, 17654, 24479, 26093, 27976, 35308, 48958, 52186, 70616, 97916, 104372, 182651, 195832, 208744, 339209, 365302, 678418, 730604, 1356836, 1461208, 2374463, 2713672, 4748926, 9497852, 18995704]

約数ペア:

[(1, 18995704), (2, 9497852), (4, 4748926), (7, 2713672), (8, 2374463), (13, 1461208), (14, 1356836), (26, 730604), (28, 678418), (52, 365302), (56, 339209), (91, 208744), (97, 195832), (104, 182651), (182, 104372), (194, 97916), (269, 70616), (364, 52186), (388, 48958), (538, 35308), (679, 27976), (728, 26093), (776, 24479), (1076, 17654), (1261, 15064), (1358, 13988), (1883, 10088), (2152, 8827), (2522, 7532), (2716, 6994), (3497, 5432), (3766, 5044)]