21880740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{883}}^1$

素因数の和:961

約数の個数: 96

約数和(自身を含む): 71285760

約数和(自身を除く): 49405020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 177, 210, 236, 295, 354, 413, 420, 590, 708, 826, 883, 885, 1180, 1239, 1652, 1766, 1770, 2065, 2478, 2649, 3532, 3540, 4130, 4415, 4956, 5298, 6181, 6195, 8260, 8830, 10596, 12362, 12390, 13245, 17660, 18543, 24724, 24780, 26490, 30905, 37086, 52097, 52980, 61810, 74172, 92715, 104194, 123620, 156291, 185430, 208388, 260485, 312582, 364679, 370860, 520970, 625164, 729358, 781455, 1041940, 1094037, 1458716, 1562910, 1823395, 2188074, 3125820, 3646790, 4376148, 5470185, 7293580, 10940370, 21880740]

約数ペア:

[(1, 21880740), (2, 10940370), (3, 7293580), (4, 5470185), (5, 4376148), (6, 3646790), (7, 3125820), (10, 2188074), (12, 1823395), (14, 1562910), (15, 1458716), (20, 1094037), (21, 1041940), (28, 781455), (30, 729358), (35, 625164), (42, 520970), (59, 370860), (60, 364679), (70, 312582), (84, 260485), (105, 208388), (118, 185430), (140, 156291), (177, 123620), (210, 104194), (236, 92715), (295, 74172), (354, 61810), (413, 52980), (420, 52097), (590, 37086), (708, 30905), (826, 26490), (883, 24780), (885, 24724), (1180, 18543), (1239, 17660), (1652, 13245), (1766, 12390), (1770, 12362), (2065, 10596), (2478, 8830), (2649, 8260), (3532, 6195), (3540, 6181), (4130, 5298), (4415, 4956)]