28201914

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{631}}^1$

素因数の和:843

約数の個数: 48

約数和(自身を含む): 66253824

約数和(自身を除く): 38051910

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 191, 234, 382, 573, 631, 1146, 1262, 1719, 1893, 2483, 3438, 3786, 4966, 5679, 7449, 8203, 11358, 14898, 16406, 22347, 24609, 44694, 49218, 73827, 120521, 147654, 241042, 361563, 723126, 1084689, 1566773, 2169378, 3133546, 4700319, 9400638, 14100957, 28201914]

約数ペア:

[(1, 28201914), (2, 14100957), (3, 9400638), (6, 4700319), (9, 3133546), (13, 2169378), (18, 1566773), (26, 1084689), (39, 723126), (78, 361563), (117, 241042), (191, 147654), (234, 120521), (382, 73827), (573, 49218), (631, 44694), (1146, 24609), (1262, 22347), (1719, 16406), (1893, 14898), (2483, 11358), (3438, 8203), (3786, 7449), (4966, 5679)]