21952216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 28044584

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 248, 286, 341, 403, 572, 619, 682, 806, 1144, 1238, 1364, 1612, 2476, 2728, 3224, 4433, 4952, 6809, 8047, 8866, 13618, 16094, 17732, 19189, 27236, 32188, 35464, 38378, 54472, 64376, 76756, 88517, 153512, 177034, 211079, 249457, 354068, 422158, 498914, 708136, 844316, 997828, 1688632, 1995656, 2744027, 5488054, 10976108, 21952216]

約数ペア:

[(1, 21952216), (2, 10976108), (4, 5488054), (8, 2744027), (11, 1995656), (13, 1688632), (22, 997828), (26, 844316), (31, 708136), (44, 498914), (52, 422158), (62, 354068), (88, 249457), (104, 211079), (124, 177034), (143, 153512), (248, 88517), (286, 76756), (341, 64376), (403, 54472), (572, 38378), (619, 35464), (682, 32188), (806, 27236), (1144, 19189), (1238, 17732), (1364, 16094), (1612, 13618), (2476, 8866), (2728, 8047), (3224, 6809), (4433, 4952)]