19944648

素因数分解:

$2^3\times 3^2\times {\mathrm{439}}^1\times {\mathrm{631}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 54225600

約数和(自身を除く): 34280952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 439, 631, 878, 1262, 1317, 1756, 1893, 2524, 2634, 3512, 3786, 3951, 5048, 5268, 5679, 7572, 7902, 10536, 11358, 15144, 15804, 22716, 31608, 45432, 277009, 554018, 831027, 1108036, 1662054, 2216072, 2493081, 3324108, 4986162, 6648216, 9972324, 19944648]

約数ペア:

[(1, 19944648), (2, 9972324), (3, 6648216), (4, 4986162), (6, 3324108), (8, 2493081), (9, 2216072), (12, 1662054), (18, 1108036), (24, 831027), (36, 554018), (72, 277009), (439, 45432), (631, 31608), (878, 22716), (1262, 15804), (1317, 15144), (1756, 11358), (1893, 10536), (2524, 7902), (2634, 7572), (3512, 5679), (3786, 5268), (3951, 5048)]