21415896

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{8039}}^1$

素因数の和:8088

約数の個数: 48

約数和(自身を含む): 59576400

約数和(自身を除く): 38160504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 8039, 16078, 24117, 32156, 48234, 64312, 72351, 96468, 144702, 192936, 289404, 297443, 578808, 594886, 892329, 1189772, 1784658, 2379544, 2676987, 3569316, 5353974, 7138632, 10707948, 21415896]

約数ペア:

[(1, 21415896), (2, 10707948), (3, 7138632), (4, 5353974), (6, 3569316), (8, 2676987), (9, 2379544), (12, 1784658), (18, 1189772), (24, 892329), (36, 594886), (37, 578808), (72, 297443), (74, 289404), (111, 192936), (148, 144702), (222, 96468), (296, 72351), (333, 64312), (444, 48234), (666, 32156), (888, 24117), (1332, 16078), (2664, 8039)]