21644420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 55910400

約数和(自身を除く): 34265980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 79, 95, 103, 133, 140, 158, 190, 206, 266, 316, 380, 395, 412, 515, 532, 553, 665, 721, 790, 1030, 1106, 1330, 1442, 1501, 1580, 1957, 2060, 2212, 2660, 2765, 2884, 3002, 3605, 3914, 5530, 6004, 7210, 7505, 7828, 8137, 9785, 10507, 11060, 13699, 14420, 15010, 16274, 19570, 21014, 27398, 30020, 32548, 39140, 40685, 42028, 52535, 54796, 56959, 68495, 81370, 105070, 113918, 136990, 154603, 162740, 210140, 227836, 273980, 284795, 309206, 569590, 618412, 773015, 1082221, 1139180, 1546030, 2164442, 3092060, 4328884, 5411105, 10822210, 21644420]

約数ペア:

[(1, 21644420), (2, 10822210), (4, 5411105), (5, 4328884), (7, 3092060), (10, 2164442), (14, 1546030), (19, 1139180), (20, 1082221), (28, 773015), (35, 618412), (38, 569590), (70, 309206), (76, 284795), (79, 273980), (95, 227836), (103, 210140), (133, 162740), (140, 154603), (158, 136990), (190, 113918), (206, 105070), (266, 81370), (316, 68495), (380, 56959), (395, 54796), (412, 52535), (515, 42028), (532, 40685), (553, 39140), (665, 32548), (721, 30020), (790, 27398), (1030, 21014), (1106, 19570), (1330, 16274), (1442, 15010), (1501, 14420), (1580, 13699), (1957, 11060), (2060, 10507), (2212, 9785), (2660, 8137), (2765, 7828), (2884, 7505), (3002, 7210), (3605, 6004), (3914, 5530)]