18743984

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1657}}^1$

素因数の和:1773

約数の個数: 40

約数和(自身を含む): 41940768

約数和(自身を除く): 23196784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1657, 2828, 3314, 5656, 6628, 11312, 11599, 13256, 23198, 26512, 46396, 92792, 167357, 185584, 334714, 669428, 1171499, 1338856, 2342998, 2677712, 4685996, 9371992, 18743984]

約数ペア:

[(1, 18743984), (2, 9371992), (4, 4685996), (7, 2677712), (8, 2342998), (14, 1338856), (16, 1171499), (28, 669428), (56, 334714), (101, 185584), (112, 167357), (202, 92792), (404, 46396), (707, 26512), (808, 23198), (1414, 13256), (1616, 11599), (1657, 11312), (2828, 6628), (3314, 5656)]