19398652

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 42194880

約数和(自身を除く): 22796228

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 137, 182, 274, 364, 389, 548, 778, 959, 1556, 1781, 1918, 2723, 3562, 3836, 5057, 5446, 7124, 10114, 10892, 12467, 20228, 24934, 35399, 49868, 53293, 70798, 106586, 141596, 213172, 373051, 692809, 746102, 1385618, 1492204, 2771236, 4849663, 9699326, 19398652]

約数ペア:

[(1, 19398652), (2, 9699326), (4, 4849663), (7, 2771236), (13, 1492204), (14, 1385618), (26, 746102), (28, 692809), (52, 373051), (91, 213172), (137, 141596), (182, 106586), (274, 70798), (364, 53293), (389, 49868), (548, 35399), (778, 24934), (959, 20228), (1556, 12467), (1781, 10892), (1918, 10114), (2723, 7124), (3562, 5446), (3836, 5057)]