19804428

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 108

約数和(自身を含む): 59339280

約数和(自身を除く): 39534852

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 103, 109, 126, 147, 196, 206, 218, 252, 294, 309, 327, 412, 436, 441, 588, 618, 654, 721, 763, 882, 927, 981, 1236, 1308, 1442, 1526, 1764, 1854, 1962, 2163, 2289, 2884, 3052, 3708, 3924, 4326, 4578, 5047, 5341, 6489, 6867, 8652, 9156, 10094, 10682, 11227, 12978, 13734, 15141, 16023, 20188, 21364, 22454, 25956, 27468, 30282, 32046, 33681, 44908, 45423, 48069, 60564, 64092, 67362, 78589, 90846, 96138, 101043, 134724, 157178, 181692, 192276, 202086, 235767, 314356, 404172, 471534, 550123, 707301, 943068, 1100246, 1414602, 1650369, 2200492, 2829204, 3300738, 4951107, 6601476, 9902214, 19804428]

約数ペア:

[(1, 19804428), (2, 9902214), (3, 6601476), (4, 4951107), (6, 3300738), (7, 2829204), (9, 2200492), (12, 1650369), (14, 1414602), (18, 1100246), (21, 943068), (28, 707301), (36, 550123), (42, 471534), (49, 404172), (63, 314356), (84, 235767), (98, 202086), (103, 192276), (109, 181692), (126, 157178), (147, 134724), (196, 101043), (206, 96138), (218, 90846), (252, 78589), (294, 67362), (309, 64092), (327, 60564), (412, 48069), (436, 45423), (441, 44908), (588, 33681), (618, 32046), (654, 30282), (721, 27468), (763, 25956), (882, 22454), (927, 21364), (981, 20188), (1236, 16023), (1308, 15141), (1442, 13734), (1526, 12978), (1764, 11227), (1854, 10682), (1962, 10094), (2163, 9156), (2289, 8652), (2884, 6867), (3052, 6489), (3708, 5341), (3924, 5047), (4326, 4578)]