21629469820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{853}}^1\times {\mathrm{2551}}^1$

素因数の和:3491

約数の個数: 96

約数和(自身を含む): 52724238336

約数和(自身を除く): 31094768516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 853, 994, 1420, 1706, 1988, 2485, 2551, 3412, 4265, 4970, 5102, 5971, 8530, 9940, 10204, 11942, 12755, 17060, 17857, 23884, 25510, 29855, 35714, 51020, 59710, 60563, 71428, 89285, 119420, 121126, 178570, 181121, 242252, 302815, 357140, 362242, 423941, 605630, 724484, 847882, 905605, 1211260, 1267847, 1695764, 1811210, 2119705, 2176003, 2535694, 3622420, 4239410, 4352006, 5071388, 6339235, 8478820, 8704012, 10880015, 12678470, 15232021, 21760030, 25356940, 30464042, 43520060, 60928084, 76160105, 152320210, 154496213, 304640420, 308992426, 617984852, 772481065, 1081473491, 1544962130, 2162946982, 3089924260, 4325893964, 5407367455, 10814734910, 21629469820]

約数ペア:

[(1, 21629469820), (2, 10814734910), (4, 5407367455), (5, 4325893964), (7, 3089924260), (10, 2162946982), (14, 1544962130), (20, 1081473491), (28, 772481065), (35, 617984852), (70, 308992426), (71, 304640420), (140, 154496213), (142, 152320210), (284, 76160105), (355, 60928084), (497, 43520060), (710, 30464042), (853, 25356940), (994, 21760030), (1420, 15232021), (1706, 12678470), (1988, 10880015), (2485, 8704012), (2551, 8478820), (3412, 6339235), (4265, 5071388), (4970, 4352006), (5102, 4239410), (5971, 3622420), (8530, 2535694), (9940, 2176003), (10204, 2119705), (11942, 1811210), (12755, 1695764), (17060, 1267847), (17857, 1211260), (23884, 905605), (25510, 847882), (29855, 724484), (35714, 605630), (51020, 423941), (59710, 362242), (60563, 357140), (71428, 302815), (89285, 242252), (119420, 181121), (121126, 178570)]