21967760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11939}}^1$

素因数の和:11975

約数の個数: 40

約数和(自身を含む): 53300160

約数和(自身を除く): 31332400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11939, 23878, 47756, 59695, 95512, 119390, 191024, 238780, 274597, 477560, 549194, 955120, 1098388, 1372985, 2196776, 2745970, 4393552, 5491940, 10983880, 21967760]

約数ペア:

[(1, 21967760), (2, 10983880), (4, 5491940), (5, 4393552), (8, 2745970), (10, 2196776), (16, 1372985), (20, 1098388), (23, 955120), (40, 549194), (46, 477560), (80, 274597), (92, 238780), (115, 191024), (184, 119390), (230, 95512), (368, 59695), (460, 47756), (920, 23878), (1840, 11939)]