19841008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1427}}^1$

素因数の和:1525

約数の個数: 40

約数和(自身を含む): 42497280

約数和(自身を除く): 22656272

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 158, 176, 316, 632, 869, 1264, 1427, 1738, 2854, 3476, 5708, 6952, 11416, 13904, 15697, 22832, 31394, 62788, 112733, 125576, 225466, 251152, 450932, 901864, 1240063, 1803728, 2480126, 4960252, 9920504, 19841008]

約数ペア:

[(1, 19841008), (2, 9920504), (4, 4960252), (8, 2480126), (11, 1803728), (16, 1240063), (22, 901864), (44, 450932), (79, 251152), (88, 225466), (158, 125576), (176, 112733), (316, 62788), (632, 31394), (869, 22832), (1264, 15697), (1427, 13904), (1738, 11416), (2854, 6952), (3476, 5708)]