21454986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 31076214

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 151, 199, 238, 302, 357, 398, 453, 597, 714, 906, 1057, 1194, 1393, 2114, 2567, 2786, 3171, 3383, 4179, 5134, 6342, 6766, 7701, 8358, 10149, 15402, 17969, 20298, 23681, 30049, 35938, 47362, 53907, 60098, 71043, 90147, 107814, 142086, 180294, 210343, 420686, 510833, 631029, 1021666, 1262058, 1532499, 3064998, 3575831, 7151662, 10727493, 21454986]

約数ペア:

[(1, 21454986), (2, 10727493), (3, 7151662), (6, 3575831), (7, 3064998), (14, 1532499), (17, 1262058), (21, 1021666), (34, 631029), (42, 510833), (51, 420686), (102, 210343), (119, 180294), (151, 142086), (199, 107814), (238, 90147), (302, 71043), (357, 60098), (398, 53907), (453, 47362), (597, 35938), (714, 30049), (906, 23681), (1057, 20298), (1194, 17969), (1393, 15402), (2114, 10149), (2567, 8358), (2786, 7701), (3171, 6766), (3383, 6342), (4179, 5134)]