21427140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3001}}^1$

素因数の和:3037

約数の個数: 96

約数和(自身を含む): 72624384

約数和(自身を除く): 51197244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3001, 3570, 6002, 7140, 9003, 12004, 15005, 18006, 21007, 30010, 36012, 42014, 45015, 51017, 60020, 63021, 84028, 90030, 102034, 105035, 126042, 153051, 180060, 204068, 210070, 252084, 255085, 306102, 315105, 357119, 420140, 510170, 612204, 630210, 714238, 765255, 1020340, 1071357, 1260420, 1428476, 1530510, 1785595, 2142714, 3061020, 3571190, 4285428, 5356785, 7142380, 10713570, 21427140]

約数ペア:

[(1, 21427140), (2, 10713570), (3, 7142380), (4, 5356785), (5, 4285428), (6, 3571190), (7, 3061020), (10, 2142714), (12, 1785595), (14, 1530510), (15, 1428476), (17, 1260420), (20, 1071357), (21, 1020340), (28, 765255), (30, 714238), (34, 630210), (35, 612204), (42, 510170), (51, 420140), (60, 357119), (68, 315105), (70, 306102), (84, 255085), (85, 252084), (102, 210070), (105, 204068), (119, 180060), (140, 153051), (170, 126042), (204, 105035), (210, 102034), (238, 90030), (255, 84028), (340, 63021), (357, 60020), (420, 51017), (476, 45015), (510, 42014), (595, 36012), (714, 30010), (1020, 21007), (1190, 18006), (1428, 15005), (1785, 12004), (2380, 9003), (3001, 7140), (3570, 6002)]