21443460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21023}}^1$

素因数の和:21052

約数の個数: 48

約数和(自身を含む): 63576576

約数和(自身を除く): 42133116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21023, 42046, 63069, 84092, 105115, 126138, 210230, 252276, 315345, 357391, 420460, 630690, 714782, 1072173, 1261380, 1429564, 1786955, 2144346, 3573910, 4288692, 5360865, 7147820, 10721730, 21443460]

約数ペア:

[(1, 21443460), (2, 10721730), (3, 7147820), (4, 5360865), (5, 4288692), (6, 3573910), (10, 2144346), (12, 1786955), (15, 1429564), (17, 1261380), (20, 1072173), (30, 714782), (34, 630690), (51, 420460), (60, 357391), (68, 315345), (85, 252276), (102, 210230), (170, 126138), (204, 105115), (255, 84092), (340, 63069), (510, 42046), (1020, 21023)]