19785194

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 37091040

約数和(自身を除く): 17305846

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 121, 143, 209, 242, 247, 286, 331, 418, 494, 662, 1573, 2299, 2717, 3146, 3641, 4303, 4598, 5434, 6289, 7282, 8606, 12578, 29887, 40051, 47333, 59774, 69179, 80102, 81757, 94666, 138358, 163514, 520663, 760969, 899327, 1041326, 1521938, 1798654, 9892597, 19785194]

約数ペア:

[(1, 19785194), (2, 9892597), (11, 1798654), (13, 1521938), (19, 1041326), (22, 899327), (26, 760969), (38, 520663), (121, 163514), (143, 138358), (209, 94666), (242, 81757), (247, 80102), (286, 69179), (331, 59774), (418, 47333), (494, 40051), (662, 29887), (1573, 12578), (2299, 8606), (2717, 7282), (3146, 6289), (3641, 5434), (4303, 4598)]