201378821

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{691}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 255098880

約数和(自身を除く): 53720059

約数列:

[1, 7, 17, 31, 79, 119, 217, 527, 553, 691, 1343, 2449, 3689, 4837, 9401, 11747, 17143, 21421, 41633, 54589, 82229, 149947, 291431, 364157, 382123, 928013, 1692259, 2549099, 6496091, 11845813, 28768403, 201378821]

約数ペア:

[(1, 201378821), (7, 28768403), (17, 11845813), (31, 6496091), (79, 2549099), (119, 1692259), (217, 928013), (527, 382123), (553, 364157), (691, 291431), (1343, 149947), (2449, 82229), (3689, 54589), (4837, 41633), (9401, 21421), (11747, 17143)]