19713204

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{571}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 57465408

約数和(自身を除く): 37752204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 548, 571, 822, 959, 1142, 1233, 1644, 1713, 1918, 2284, 2466, 2877, 3426, 3836, 3997, 4932, 5139, 5754, 6852, 7994, 8631, 10278, 11508, 11991, 15988, 17262, 20556, 23982, 34524, 35973, 47964, 71946, 78227, 143892, 156454, 234681, 312908, 469362, 547589, 704043, 938724, 1095178, 1408086, 1642767, 2190356, 2816172, 3285534, 4928301, 6571068, 9856602, 19713204]

約数ペア:

[(1, 19713204), (2, 9856602), (3, 6571068), (4, 4928301), (6, 3285534), (7, 2816172), (9, 2190356), (12, 1642767), (14, 1408086), (18, 1095178), (21, 938724), (28, 704043), (36, 547589), (42, 469362), (63, 312908), (84, 234681), (126, 156454), (137, 143892), (252, 78227), (274, 71946), (411, 47964), (548, 35973), (571, 34524), (822, 23982), (959, 20556), (1142, 17262), (1233, 15988), (1644, 11991), (1713, 11508), (1918, 10278), (2284, 8631), (2466, 7994), (2877, 6852), (3426, 5754), (3836, 5139), (3997, 4932)]