19782516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{601}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 50028608

約数和(自身を除く): 30246092

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 211, 422, 601, 633, 844, 1202, 1266, 1803, 2404, 2532, 2743, 3606, 5486, 7212, 7813, 8229, 10972, 15626, 16458, 23439, 31252, 32916, 46878, 93756, 126811, 253622, 380433, 507244, 760866, 1521732, 1648543, 3297086, 4945629, 6594172, 9891258, 19782516]

約数ペア:

[(1, 19782516), (2, 9891258), (3, 6594172), (4, 4945629), (6, 3297086), (12, 1648543), (13, 1521732), (26, 760866), (39, 507244), (52, 380433), (78, 253622), (156, 126811), (211, 93756), (422, 46878), (601, 32916), (633, 31252), (844, 23439), (1202, 16458), (1266, 15626), (1803, 10972), (2404, 8229), (2532, 7813), (2743, 7212), (3606, 5486)]