21895356

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1663

約数の個数: 72

約数和(自身を含む): 62052480

約数和(自身を除く): 40157124

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 49, 69, 84, 92, 98, 138, 147, 161, 196, 276, 294, 322, 483, 588, 644, 966, 1127, 1619, 1932, 2254, 3238, 3381, 4508, 4857, 6476, 6762, 9714, 11333, 13524, 19428, 22666, 33999, 37237, 45332, 67998, 74474, 79331, 111711, 135996, 148948, 158662, 223422, 237993, 260659, 317324, 446844, 475986, 521318, 781977, 951972, 1042636, 1563954, 1824613, 3127908, 3649226, 5473839, 7298452, 10947678, 21895356]

約数ペア:

[(1, 21895356), (2, 10947678), (3, 7298452), (4, 5473839), (6, 3649226), (7, 3127908), (12, 1824613), (14, 1563954), (21, 1042636), (23, 951972), (28, 781977), (42, 521318), (46, 475986), (49, 446844), (69, 317324), (84, 260659), (92, 237993), (98, 223422), (138, 158662), (147, 148948), (161, 135996), (196, 111711), (276, 79331), (294, 74474), (322, 67998), (483, 45332), (588, 37237), (644, 33999), (966, 22666), (1127, 19428), (1619, 13524), (1932, 11333), (2254, 9714), (3238, 6762), (3381, 6476), (4508, 4857)]