21735028

素因数分解:

$2^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{641}}^1$

素因数の和:832

約数の個数: 36

約数和(自身を含む): 44571492

約数和(自身を除く): 22836464

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 173, 196, 346, 641, 692, 1211, 1282, 2422, 2564, 4487, 4844, 8477, 8974, 16954, 17948, 31409, 33908, 62818, 110893, 125636, 221786, 443572, 776251, 1552502, 3105004, 5433757, 10867514, 21735028]

約数ペア:

[(1, 21735028), (2, 10867514), (4, 5433757), (7, 3105004), (14, 1552502), (28, 776251), (49, 443572), (98, 221786), (173, 125636), (196, 110893), (346, 62818), (641, 33908), (692, 31409), (1211, 17948), (1282, 16954), (2422, 8974), (2564, 8477), (4487, 4844)]