21191970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30713}}^1$

素因数の和:30746

約数の個数: 32

約数和(自身を含む): 53073792

約数和(自身を除く): 31881822

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 30713, 61426, 92139, 153565, 184278, 307130, 460695, 706399, 921390, 1412798, 2119197, 3531995, 4238394, 7063990, 10595985, 21191970]

約数ペア:

[(1, 21191970), (2, 10595985), (3, 7063990), (5, 4238394), (6, 3531995), (10, 2119197), (15, 1412798), (23, 921390), (30, 706399), (46, 460695), (69, 307130), (115, 184278), (138, 153565), (230, 92139), (345, 61426), (690, 30713)]