21772835

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 34670592

約数和(自身を除く): 12897757

約数列:

[1, 5, 7, 17, 23, 35, 37, 43, 85, 115, 119, 161, 185, 215, 259, 301, 391, 595, 629, 731, 805, 851, 989, 1295, 1505, 1591, 1955, 2737, 3145, 3655, 4255, 4403, 4945, 5117, 5957, 6923, 7955, 11137, 13685, 14467, 16813, 22015, 25585, 27047, 29785, 34615, 36593, 55685, 72335, 84065, 101269, 117691, 135235, 182965, 189329, 256151, 506345, 588455, 622081, 946645, 1280755, 3110405, 4354567, 21772835]

約数ペア:

[(1, 21772835), (5, 4354567), (7, 3110405), (17, 1280755), (23, 946645), (35, 622081), (37, 588455), (43, 506345), (85, 256151), (115, 189329), (119, 182965), (161, 135235), (185, 117691), (215, 101269), (259, 84065), (301, 72335), (391, 55685), (595, 36593), (629, 34615), (731, 29785), (805, 27047), (851, 25585), (989, 22015), (1295, 16813), (1505, 14467), (1591, 13685), (1955, 11137), (2737, 7955), (3145, 6923), (3655, 5957), (4255, 5117), (4403, 4945)]