21367890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1733}}^1$

素因数の和:1883

約数の個数: 48

約数和(自身を含む): 55994328

約数和(自身を除く): 34626438

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 1733, 2055, 2466, 3466, 4110, 5199, 6165, 8665, 10398, 12330, 15597, 17330, 25995, 31194, 51990, 77985, 155970, 237421, 474842, 712263, 1187105, 1424526, 2136789, 2374210, 3561315, 4273578, 7122630, 10683945, 21367890]

約数ペア:

[(1, 21367890), (2, 10683945), (3, 7122630), (5, 4273578), (6, 3561315), (9, 2374210), (10, 2136789), (15, 1424526), (18, 1187105), (30, 712263), (45, 474842), (90, 237421), (137, 155970), (274, 77985), (411, 51990), (685, 31194), (822, 25995), (1233, 17330), (1370, 15597), (1733, 12330), (2055, 10398), (2466, 8665), (3466, 6165), (4110, 5199)]