18974564

素因数分解:

$2^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{739}}^1$

素因数の和:888

約数の個数: 36

約数和(自身を含む): 38974320

約数和(自身を除く): 19999756

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 131, 196, 262, 524, 739, 917, 1478, 1834, 2956, 3668, 5173, 6419, 10346, 12838, 20692, 25676, 36211, 72422, 96809, 144844, 193618, 387236, 677663, 1355326, 2710652, 4743641, 9487282, 18974564]

約数ペア:

[(1, 18974564), (2, 9487282), (4, 4743641), (7, 2710652), (14, 1355326), (28, 677663), (49, 387236), (98, 193618), (131, 144844), (196, 96809), (262, 72422), (524, 36211), (739, 25676), (917, 20692), (1478, 12838), (1834, 10346), (2956, 6419), (3668, 5173)]