19971224

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3919}}^1$

素因数の和:3952

約数の個数: 48

約数和(自身を含む): 46922400

約数和(自身を除く): 26951176

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 3919, 5096, 7838, 15676, 27433, 31352, 50947, 54866, 101894, 109732, 192031, 203788, 219464, 356629, 384062, 407576, 713258, 768124, 1426516, 1536248, 2496403, 2853032, 4992806, 9985612, 19971224]

約数ペア:

[(1, 19971224), (2, 9985612), (4, 4992806), (7, 2853032), (8, 2496403), (13, 1536248), (14, 1426516), (26, 768124), (28, 713258), (49, 407576), (52, 384062), (56, 356629), (91, 219464), (98, 203788), (104, 192031), (182, 109732), (196, 101894), (364, 54866), (392, 50947), (637, 31352), (728, 27433), (1274, 15676), (2548, 7838), (3919, 5096)]