21420144

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7829}}^1$

素因数の和:7862

約数の個数: 60

約数和(自身を含む): 63109800

約数和(自身を除く): 41689656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7829, 15658, 23487, 31316, 46974, 62632, 70461, 93948, 125264, 140922, 148751, 187896, 281844, 297502, 375792, 446253, 563688, 595004, 892506, 1127376, 1190008, 1338759, 1785012, 2380016, 2677518, 3570024, 5355036, 7140048, 10710072, 21420144]

約数ペア:

[(1, 21420144), (2, 10710072), (3, 7140048), (4, 5355036), (6, 3570024), (8, 2677518), (9, 2380016), (12, 1785012), (16, 1338759), (18, 1190008), (19, 1127376), (24, 892506), (36, 595004), (38, 563688), (48, 446253), (57, 375792), (72, 297502), (76, 281844), (114, 187896), (144, 148751), (152, 140922), (171, 125264), (228, 93948), (304, 70461), (342, 62632), (456, 46974), (684, 31316), (912, 23487), (1368, 15658), (2736, 7829)]