21007816130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{767549}}^1$

素因数の和:767603

約数の個数: 64

約数和(自身を含む): 47747750400

約数和(自身を除く): 26739934270

約数列:

[1, 2, 5, 7, 10, 14, 17, 23, 34, 35, 46, 70, 85, 115, 119, 161, 170, 230, 238, 322, 391, 595, 782, 805, 1190, 1610, 1955, 2737, 3910, 5474, 13685, 27370, 767549, 1535098, 3837745, 5372843, 7675490, 10745686, 13048333, 17653627, 26096666, 26864215, 35307254, 53728430, 65241665, 88268135, 91338331, 123575389, 130483330, 176536270, 182676662, 247150778, 300111659, 456691655, 600223318, 617876945, 913383310, 1235753890, 1500558295, 2100781613, 3001116590, 4201563226, 10503908065, 21007816130]

約数ペア:

[(1, 21007816130), (2, 10503908065), (5, 4201563226), (7, 3001116590), (10, 2100781613), (14, 1500558295), (17, 1235753890), (23, 913383310), (34, 617876945), (35, 600223318), (46, 456691655), (70, 300111659), (85, 247150778), (115, 182676662), (119, 176536270), (161, 130483330), (170, 123575389), (230, 91338331), (238, 88268135), (322, 65241665), (391, 53728430), (595, 35307254), (782, 26864215), (805, 26096666), (1190, 17653627), (1610, 13048333), (1955, 10745686), (2737, 7675490), (3910, 5372843), (5474, 3837745), (13685, 1535098), (27370, 767549)]