18981536

素因数分解:

$2^5\times 7^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:957

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 24201184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 101, 112, 202, 224, 404, 707, 808, 839, 1414, 1616, 1678, 2828, 3232, 3356, 5656, 5873, 6712, 11312, 11746, 13424, 22624, 23492, 26848, 46984, 84739, 93968, 169478, 187936, 338956, 593173, 677912, 1186346, 1355824, 2372692, 2711648, 4745384, 9490768, 18981536]

約数ペア:

[(1, 18981536), (2, 9490768), (4, 4745384), (7, 2711648), (8, 2372692), (14, 1355824), (16, 1186346), (28, 677912), (32, 593173), (56, 338956), (101, 187936), (112, 169478), (202, 93968), (224, 84739), (404, 46984), (707, 26848), (808, 23492), (839, 22624), (1414, 13424), (1616, 11746), (1678, 11312), (2828, 6712), (3232, 5873), (3356, 5656)]