21348390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{367}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 58927104

約数和(自身を除く): 37578714

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 277, 367, 554, 734, 831, 1101, 1385, 1662, 1835, 1939, 2202, 2569, 2770, 3670, 3878, 4155, 5138, 5505, 5817, 7707, 8310, 9695, 11010, 11634, 12845, 15414, 19390, 25690, 29085, 38535, 58170, 77070, 101659, 203318, 304977, 508295, 609954, 711613, 1016590, 1423226, 1524885, 2134839, 3049770, 3558065, 4269678, 7116130, 10674195, 21348390]

約数ペア:

[(1, 21348390), (2, 10674195), (3, 7116130), (5, 4269678), (6, 3558065), (7, 3049770), (10, 2134839), (14, 1524885), (15, 1423226), (21, 1016590), (30, 711613), (35, 609954), (42, 508295), (70, 304977), (105, 203318), (210, 101659), (277, 77070), (367, 58170), (554, 38535), (734, 29085), (831, 25690), (1101, 19390), (1385, 15414), (1662, 12845), (1835, 11634), (1939, 11010), (2202, 9695), (2569, 8310), (2770, 7707), (3670, 5817), (3878, 5505), (4155, 5138)]