21143206

素因数分解:

$2^1\times 7^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:91

約数の個数: 48

約数和(自身を含む): 40235616

約数和(自身を除く): 19092410

約数列:

[1, 2, 7, 14, 17, 34, 37, 49, 74, 98, 119, 238, 259, 343, 518, 629, 686, 833, 1258, 1666, 1813, 2401, 3626, 4403, 4802, 5831, 8806, 11662, 12691, 16807, 25382, 30821, 33614, 40817, 61642, 81634, 88837, 177674, 215747, 285719, 431494, 571438, 621859, 1243718, 1510229, 3020458, 10571603, 21143206]

約数ペア:

[(1, 21143206), (2, 10571603), (7, 3020458), (14, 1510229), (17, 1243718), (34, 621859), (37, 571438), (49, 431494), (74, 285719), (98, 215747), (119, 177674), (238, 88837), (259, 81634), (343, 61642), (518, 40817), (629, 33614), (686, 30821), (833, 25382), (1258, 16807), (1666, 12691), (1813, 11662), (2401, 8806), (3626, 5831), (4403, 4802)]