201979449

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 342486144

約数和(自身を除く): 140506695

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 241, 251, 371, 477, 723, 753, 1113, 1687, 1757, 2169, 2259, 3339, 5061, 5271, 12773, 13303, 15183, 15813, 38319, 39909, 60491, 89411, 93121, 114957, 119727, 181473, 268233, 279363, 423437, 544419, 804699, 838089, 1270311, 3206023, 3810933, 9618069, 22442161, 28854207, 67326483, 201979449]

約数ペア:

[(1, 201979449), (3, 67326483), (7, 28854207), (9, 22442161), (21, 9618069), (53, 3810933), (63, 3206023), (159, 1270311), (241, 838089), (251, 804699), (371, 544419), (477, 423437), (723, 279363), (753, 268233), (1113, 181473), (1687, 119727), (1757, 114957), (2169, 93121), (2259, 89411), (3339, 60491), (5061, 39909), (5271, 38319), (12773, 15813), (13303, 15183)]