21923580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7457}}^1$

素因数の和:7483

約数の個数: 72

約数和(自身を含む): 71417808

約数和(自身を除く): 49494228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7457, 14914, 22371, 29828, 37285, 44742, 52199, 74570, 89484, 104398, 111855, 149140, 156597, 208796, 223710, 260995, 313194, 365393, 447420, 521990, 626388, 730786, 782985, 1043980, 1096179, 1461572, 1565970, 1826965, 2192358, 3131940, 3653930, 4384716, 5480895, 7307860, 10961790, 21923580]

約数ペア:

[(1, 21923580), (2, 10961790), (3, 7307860), (4, 5480895), (5, 4384716), (6, 3653930), (7, 3131940), (10, 2192358), (12, 1826965), (14, 1565970), (15, 1461572), (20, 1096179), (21, 1043980), (28, 782985), (30, 730786), (35, 626388), (42, 521990), (49, 447420), (60, 365393), (70, 313194), (84, 260995), (98, 223710), (105, 208796), (140, 156597), (147, 149140), (196, 111855), (210, 104398), (245, 89484), (294, 74570), (420, 52199), (490, 44742), (588, 37285), (735, 29828), (980, 22371), (1470, 14914), (2940, 7457)]