20398482

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 47960640

約数和(自身を除く): 27562158

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 179, 234, 358, 487, 537, 974, 1074, 1461, 1611, 2327, 2922, 3222, 4383, 4654, 6331, 6981, 8766, 12662, 13962, 18993, 20943, 37986, 41886, 56979, 87173, 113958, 174346, 261519, 523038, 784557, 1133249, 1569114, 2266498, 3399747, 6799494, 10199241, 20398482]

約数ペア:

[(1, 20398482), (2, 10199241), (3, 6799494), (6, 3399747), (9, 2266498), (13, 1569114), (18, 1133249), (26, 784557), (39, 523038), (78, 261519), (117, 174346), (179, 113958), (234, 87173), (358, 56979), (487, 41886), (537, 37986), (974, 20943), (1074, 18993), (1461, 13962), (1611, 12662), (2327, 8766), (2922, 6981), (3222, 6331), (4383, 4654)]