21775020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 65802240

約数和(自身を除く): 44027220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 345, 372, 460, 465, 509, 620, 690, 713, 930, 1018, 1380, 1426, 1527, 1860, 2036, 2139, 2545, 2852, 3054, 3565, 4278, 5090, 6108, 7130, 7635, 8556, 10180, 10695, 11707, 14260, 15270, 15779, 21390, 23414, 30540, 31558, 35121, 42780, 46828, 47337, 58535, 63116, 70242, 78895, 94674, 117070, 140484, 157790, 175605, 189348, 234140, 236685, 315580, 351210, 362917, 473370, 702420, 725834, 946740, 1088751, 1451668, 1814585, 2177502, 3629170, 4355004, 5443755, 7258340, 10887510, 21775020]

約数ペア:

[(1, 21775020), (2, 10887510), (3, 7258340), (4, 5443755), (5, 4355004), (6, 3629170), (10, 2177502), (12, 1814585), (15, 1451668), (20, 1088751), (23, 946740), (30, 725834), (31, 702420), (46, 473370), (60, 362917), (62, 351210), (69, 315580), (92, 236685), (93, 234140), (115, 189348), (124, 175605), (138, 157790), (155, 140484), (186, 117070), (230, 94674), (276, 78895), (310, 70242), (345, 63116), (372, 58535), (460, 47337), (465, 46828), (509, 42780), (620, 35121), (690, 31558), (713, 30540), (930, 23414), (1018, 21390), (1380, 15779), (1426, 15270), (1527, 14260), (1860, 11707), (2036, 10695), (2139, 10180), (2545, 8556), (2852, 7635), (3054, 7130), (3565, 6108), (4278, 5090)]