19743828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1889}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 50379840

約数和(自身を除く): 30636012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 1889, 2613, 3484, 3778, 5226, 5667, 7556, 10452, 11334, 22668, 24557, 49114, 73671, 98228, 126563, 147342, 253126, 294684, 379689, 506252, 759378, 1518756, 1645319, 3290638, 4935957, 6581276, 9871914, 19743828]

約数ペア:

[(1, 19743828), (2, 9871914), (3, 6581276), (4, 4935957), (6, 3290638), (12, 1645319), (13, 1518756), (26, 759378), (39, 506252), (52, 379689), (67, 294684), (78, 253126), (134, 147342), (156, 126563), (201, 98228), (268, 73671), (402, 49114), (804, 24557), (871, 22668), (1742, 11334), (1889, 10452), (2613, 7556), (3484, 5667), (3778, 5226)]