21891330

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1016

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 37206270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 89, 90, 135, 178, 267, 270, 445, 534, 801, 890, 911, 1335, 1602, 1822, 2403, 2670, 2733, 4005, 4555, 4806, 5466, 8010, 8199, 9110, 12015, 13665, 16398, 24030, 24597, 27330, 40995, 49194, 81079, 81990, 122985, 162158, 243237, 245970, 405395, 486474, 729711, 810790, 1216185, 1459422, 2189133, 2432370, 3648555, 4378266, 7297110, 10945665, 21891330]

約数ペア:

[(1, 21891330), (2, 10945665), (3, 7297110), (5, 4378266), (6, 3648555), (9, 2432370), (10, 2189133), (15, 1459422), (18, 1216185), (27, 810790), (30, 729711), (45, 486474), (54, 405395), (89, 245970), (90, 243237), (135, 162158), (178, 122985), (267, 81990), (270, 81079), (445, 49194), (534, 40995), (801, 27330), (890, 24597), (911, 24030), (1335, 16398), (1602, 13665), (1822, 12015), (2403, 9110), (2670, 8199), (2733, 8010), (4005, 5466), (4555, 4806)]