21501004

素因数分解:

$2^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{673}}^1$

素因数の和:854

約数の個数: 36

約数和(自身を含む): 44103864

約数和(自身を除く): 22602860

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 163, 196, 326, 652, 673, 1141, 1346, 2282, 2692, 4564, 4711, 7987, 9422, 15974, 18844, 31948, 32977, 65954, 109699, 131908, 219398, 438796, 767893, 1535786, 3071572, 5375251, 10750502, 21501004]

約数ペア:

[(1, 21501004), (2, 10750502), (4, 5375251), (7, 3071572), (14, 1535786), (28, 767893), (49, 438796), (98, 219398), (163, 131908), (196, 109699), (326, 65954), (652, 32977), (673, 31948), (1141, 18844), (1346, 15974), (2282, 9422), (2692, 7987), (4564, 4711)]