21967360

素因数分解:

$2^9\times 5^1\times {\mathrm{8581}}^1$

素因数の和:8604

約数の個数: 40

約数和(自身を含む): 52676316

約数和(自身を除く): 30708956

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8581, 17162, 34324, 42905, 68648, 85810, 137296, 171620, 274592, 343240, 549184, 686480, 1098368, 1372960, 2196736, 2745920, 4393472, 5491840, 10983680, 21967360]

約数ペア:

[(1, 21967360), (2, 10983680), (4, 5491840), (5, 4393472), (8, 2745920), (10, 2196736), (16, 1372960), (20, 1098368), (32, 686480), (40, 549184), (64, 343240), (80, 274592), (128, 171620), (160, 137296), (256, 85810), (320, 68648), (512, 42905), (640, 34324), (1280, 17162), (2560, 8581)]