21715190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10007}}^1$

素因数の和:10052

約数の個数: 32

約数和(自身を含む): 46116864

約数和(自身を除く): 24401674

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 10007, 20014, 50035, 70049, 100070, 140098, 310217, 350245, 620434, 700490, 1551085, 2171519, 3102170, 4343038, 10857595, 21715190]

約数ペア:

[(1, 21715190), (2, 10857595), (5, 4343038), (7, 3102170), (10, 2171519), (14, 1551085), (31, 700490), (35, 620434), (62, 350245), (70, 310217), (155, 140098), (217, 100070), (310, 70049), (434, 50035), (1085, 20014), (2170, 10007)]