21998142

素因数分解:

$2^1\times 3^4\times {\mathrm{251}}^1\times {\mathrm{541}}^1$

素因数の和:806

約数の個数: 40

約数和(自身を含む): 49579992

約数和(自身を除く): 27581850

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 251, 502, 541, 753, 1082, 1506, 1623, 2259, 3246, 4518, 4869, 6777, 9738, 13554, 14607, 20331, 29214, 40662, 43821, 87642, 135791, 271582, 407373, 814746, 1222119, 2444238, 3666357, 7332714, 10999071, 21998142]

約数ペア:

[(1, 21998142), (2, 10999071), (3, 7332714), (6, 3666357), (9, 2444238), (18, 1222119), (27, 814746), (54, 407373), (81, 271582), (162, 135791), (251, 87642), (502, 43821), (541, 40662), (753, 29214), (1082, 20331), (1506, 14607), (1623, 13554), (2259, 9738), (3246, 6777), (4518, 4869)]