21235320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{967}}^1$

素因数の和:1045

約数の個数: 96

約数和(自身を含む): 70218720

約数和(自身を除く): 48983400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 915, 967, 1098, 1220, 1464, 1830, 1934, 2196, 2440, 2745, 2901, 3660, 3868, 4392, 4835, 5490, 5802, 7320, 7736, 8703, 9670, 10980, 11604, 14505, 17406, 19340, 21960, 23208, 29010, 34812, 38680, 43515, 58020, 58987, 69624, 87030, 116040, 117974, 174060, 176961, 235948, 294935, 348120, 353922, 471896, 530883, 589870, 707844, 884805, 1061766, 1179740, 1415688, 1769610, 2123532, 2359480, 2654415, 3539220, 4247064, 5308830, 7078440, 10617660, 21235320]

約数ペア:

[(1, 21235320), (2, 10617660), (3, 7078440), (4, 5308830), (5, 4247064), (6, 3539220), (8, 2654415), (9, 2359480), (10, 2123532), (12, 1769610), (15, 1415688), (18, 1179740), (20, 1061766), (24, 884805), (30, 707844), (36, 589870), (40, 530883), (45, 471896), (60, 353922), (61, 348120), (72, 294935), (90, 235948), (120, 176961), (122, 174060), (180, 117974), (183, 116040), (244, 87030), (305, 69624), (360, 58987), (366, 58020), (488, 43515), (549, 38680), (610, 34812), (732, 29010), (915, 23208), (967, 21960), (1098, 19340), (1220, 17406), (1464, 14505), (1830, 11604), (1934, 10980), (2196, 9670), (2440, 8703), (2745, 7736), (2901, 7320), (3660, 5802), (3868, 5490), (4392, 4835)]