19834516

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 39250960

約数和(自身を除く): 19416444

約数列:

[1, 2, 4, 13, 26, 37, 52, 61, 74, 122, 148, 169, 244, 338, 481, 676, 793, 962, 1586, 1924, 2197, 2257, 3172, 4394, 4514, 6253, 8788, 9028, 10309, 12506, 20618, 25012, 29341, 41236, 58682, 81289, 117364, 134017, 162578, 268034, 325156, 381433, 536068, 762866, 1525732, 4958629, 9917258, 19834516]

約数ペア:

[(1, 19834516), (2, 9917258), (4, 4958629), (13, 1525732), (26, 762866), (37, 536068), (52, 381433), (61, 325156), (74, 268034), (122, 162578), (148, 134017), (169, 117364), (244, 81289), (338, 58682), (481, 41236), (676, 29341), (793, 25012), (962, 20618), (1586, 12506), (1924, 10309), (2197, 9028), (2257, 8788), (3172, 6253), (4394, 4514)]