19561464

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20899}}^1$

素因数の和:20924

約数の個数: 48

約数和(自身を含む): 57057000

約数和(自身を除く): 37495536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20899, 41798, 62697, 83596, 125394, 167192, 188091, 250788, 271687, 376182, 501576, 543374, 752364, 815061, 1086748, 1504728, 1630122, 2173496, 2445183, 3260244, 4890366, 6520488, 9780732, 19561464]

約数ペア:

[(1, 19561464), (2, 9780732), (3, 6520488), (4, 4890366), (6, 3260244), (8, 2445183), (9, 2173496), (12, 1630122), (13, 1504728), (18, 1086748), (24, 815061), (26, 752364), (36, 543374), (39, 501576), (52, 376182), (72, 271687), (78, 250788), (104, 188091), (117, 167192), (156, 125394), (234, 83596), (312, 62697), (468, 41798), (936, 20899)]