21176260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{419}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 53766720

約数和(自身を除く): 32590460

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 419, 532, 665, 722, 838, 1330, 1444, 1676, 1805, 2095, 2527, 2660, 2933, 3610, 4190, 5054, 5866, 7220, 7961, 8380, 10108, 11732, 12635, 14665, 15922, 25270, 29330, 31844, 39805, 50540, 55727, 58660, 79610, 111454, 151259, 159220, 222908, 278635, 302518, 557270, 605036, 756295, 1058813, 1114540, 1512590, 2117626, 3025180, 4235252, 5294065, 10588130, 21176260]

約数ペア:

[(1, 21176260), (2, 10588130), (4, 5294065), (5, 4235252), (7, 3025180), (10, 2117626), (14, 1512590), (19, 1114540), (20, 1058813), (28, 756295), (35, 605036), (38, 557270), (70, 302518), (76, 278635), (95, 222908), (133, 159220), (140, 151259), (190, 111454), (266, 79610), (361, 58660), (380, 55727), (419, 50540), (532, 39805), (665, 31844), (722, 29330), (838, 25270), (1330, 15922), (1444, 14665), (1676, 12635), (1805, 11732), (2095, 10108), (2527, 8380), (2660, 7961), (2933, 7220), (3610, 5866), (4190, 5054)]