19756728

素因数分解:

$2^3\times 3^2\times {\mathrm{331}}^1\times {\mathrm{829}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 53734200

約数和(自身を除く): 33977472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 331, 662, 829, 993, 1324, 1658, 1986, 2487, 2648, 2979, 3316, 3972, 4974, 5958, 6632, 7461, 7944, 9948, 11916, 14922, 19896, 23832, 29844, 59688, 274399, 548798, 823197, 1097596, 1646394, 2195192, 2469591, 3292788, 4939182, 6585576, 9878364, 19756728]

約数ペア:

[(1, 19756728), (2, 9878364), (3, 6585576), (4, 4939182), (6, 3292788), (8, 2469591), (9, 2195192), (12, 1646394), (18, 1097596), (24, 823197), (36, 548798), (72, 274399), (331, 59688), (662, 29844), (829, 23832), (993, 19896), (1324, 14922), (1658, 11916), (1986, 9948), (2487, 7944), (2648, 7461), (2979, 6632), (3316, 5958), (3972, 4974)]