20956908

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1229}}^1$

素因数の和:1279

約数の個数: 72

約数和(自身を含む): 58892400

約数和(自身を除く): 37935492

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 49, 58, 84, 87, 98, 116, 147, 174, 196, 203, 294, 348, 406, 588, 609, 812, 1218, 1229, 1421, 2436, 2458, 2842, 3687, 4263, 4916, 5684, 7374, 8526, 8603, 14748, 17052, 17206, 25809, 34412, 35641, 51618, 60221, 71282, 103236, 106923, 120442, 142564, 180663, 213846, 240884, 249487, 361326, 427692, 498974, 722652, 748461, 997948, 1496922, 1746409, 2993844, 3492818, 5239227, 6985636, 10478454, 20956908]

約数ペア:

[(1, 20956908), (2, 10478454), (3, 6985636), (4, 5239227), (6, 3492818), (7, 2993844), (12, 1746409), (14, 1496922), (21, 997948), (28, 748461), (29, 722652), (42, 498974), (49, 427692), (58, 361326), (84, 249487), (87, 240884), (98, 213846), (116, 180663), (147, 142564), (174, 120442), (196, 106923), (203, 103236), (294, 71282), (348, 60221), (406, 51618), (588, 35641), (609, 34412), (812, 25809), (1218, 17206), (1229, 17052), (1421, 14748), (2436, 8603), (2458, 8526), (2842, 7374), (3687, 5684), (4263, 4916)]