20811210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{877}}^1$

素因数の和:1007

約数の個数: 64

約数和(自身を含む): 57652992

約数和(自身を除く): 36841782

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 113, 210, 226, 339, 565, 678, 791, 877, 1130, 1582, 1695, 1754, 2373, 2631, 3390, 3955, 4385, 4746, 5262, 6139, 7910, 8770, 11865, 12278, 13155, 18417, 23730, 26310, 30695, 36834, 61390, 92085, 99101, 184170, 198202, 297303, 495505, 594606, 693707, 991010, 1387414, 1486515, 2081121, 2973030, 3468535, 4162242, 6937070, 10405605, 20811210]

約数ペア:

[(1, 20811210), (2, 10405605), (3, 6937070), (5, 4162242), (6, 3468535), (7, 2973030), (10, 2081121), (14, 1486515), (15, 1387414), (21, 991010), (30, 693707), (35, 594606), (42, 495505), (70, 297303), (105, 198202), (113, 184170), (210, 99101), (226, 92085), (339, 61390), (565, 36834), (678, 30695), (791, 26310), (877, 23730), (1130, 18417), (1582, 13155), (1695, 12278), (1754, 11865), (2373, 8770), (2631, 7910), (3390, 6139), (3955, 5262), (4385, 4746)]