21222468

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 108

約数和(自身を含む): 59911488

約数和(自身を除く): 38689020

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 46, 57, 69, 71, 76, 92, 114, 138, 142, 171, 207, 213, 228, 276, 284, 342, 361, 414, 426, 437, 639, 684, 722, 828, 852, 874, 1083, 1278, 1311, 1349, 1444, 1633, 1748, 2166, 2556, 2622, 2698, 3249, 3266, 3933, 4047, 4332, 4899, 5244, 5396, 6498, 6532, 7866, 8094, 8303, 9798, 12141, 12996, 14697, 15732, 16188, 16606, 19596, 24282, 24909, 25631, 29394, 31027, 33212, 48564, 49818, 51262, 58788, 62054, 74727, 76893, 93081, 99636, 102524, 124108, 149454, 153786, 186162, 230679, 279243, 298908, 307572, 372324, 461358, 558486, 589513, 922716, 1116972, 1179026, 1768539, 2358052, 3537078, 5305617, 7074156, 10611234, 21222468]

約数ペア:

[(1, 21222468), (2, 10611234), (3, 7074156), (4, 5305617), (6, 3537078), (9, 2358052), (12, 1768539), (18, 1179026), (19, 1116972), (23, 922716), (36, 589513), (38, 558486), (46, 461358), (57, 372324), (69, 307572), (71, 298908), (76, 279243), (92, 230679), (114, 186162), (138, 153786), (142, 149454), (171, 124108), (207, 102524), (213, 99636), (228, 93081), (276, 76893), (284, 74727), (342, 62054), (361, 58788), (414, 51262), (426, 49818), (437, 48564), (639, 33212), (684, 31027), (722, 29394), (828, 25631), (852, 24909), (874, 24282), (1083, 19596), (1278, 16606), (1311, 16188), (1349, 15732), (1444, 14697), (1633, 12996), (1748, 12141), (2166, 9798), (2556, 8303), (2622, 8094), (2698, 7866), (3249, 6532), (3266, 6498), (3933, 5396), (4047, 5244), (4332, 4899)]