21502620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7027}}^1$

素因数の和:7059

約数の個数: 72

約数和(自身を含む): 69071184

約数和(自身を除く): 47568564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 7027, 14054, 21081, 28108, 35135, 42162, 63243, 70270, 84324, 105405, 119459, 126486, 140540, 210810, 238918, 252972, 316215, 358377, 421620, 477836, 597295, 632430, 716754, 1075131, 1194590, 1264860, 1433508, 1791885, 2150262, 2389180, 3583770, 4300524, 5375655, 7167540, 10751310, 21502620]

約数ペア:

[(1, 21502620), (2, 10751310), (3, 7167540), (4, 5375655), (5, 4300524), (6, 3583770), (9, 2389180), (10, 2150262), (12, 1791885), (15, 1433508), (17, 1264860), (18, 1194590), (20, 1075131), (30, 716754), (34, 632430), (36, 597295), (45, 477836), (51, 421620), (60, 358377), (68, 316215), (85, 252972), (90, 238918), (102, 210810), (153, 140540), (170, 126486), (180, 119459), (204, 105405), (255, 84324), (306, 70270), (340, 63243), (510, 42162), (612, 35135), (765, 28108), (1020, 21081), (1530, 14054), (3060, 7027)]