20531238

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1269

約数の個数: 64

約数和(自身を含む): 52211712

約数和(自身を除く): 31680474

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 31, 39, 42, 62, 78, 91, 93, 182, 186, 217, 273, 403, 434, 546, 651, 806, 1209, 1213, 1302, 2418, 2426, 2821, 3639, 5642, 7278, 8463, 8491, 15769, 16926, 16982, 25473, 31538, 37603, 47307, 50946, 75206, 94614, 110383, 112809, 220766, 225618, 263221, 331149, 488839, 526442, 662298, 789663, 977678, 1466517, 1579326, 2933034, 3421873, 6843746, 10265619, 20531238]

約数ペア:

[(1, 20531238), (2, 10265619), (3, 6843746), (6, 3421873), (7, 2933034), (13, 1579326), (14, 1466517), (21, 977678), (26, 789663), (31, 662298), (39, 526442), (42, 488839), (62, 331149), (78, 263221), (91, 225618), (93, 220766), (182, 112809), (186, 110383), (217, 94614), (273, 75206), (403, 50946), (434, 47307), (546, 37603), (651, 31538), (806, 25473), (1209, 16982), (1213, 16926), (1302, 15769), (2418, 8491), (2426, 8463), (2821, 7278), (3639, 5642)]