81972396

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{653}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 227105424

約数和(自身を除く): 145133028

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 317, 396, 634, 653, 951, 1268, 1306, 1902, 1959, 2612, 2853, 3487, 3804, 3918, 5706, 5877, 6974, 7183, 7836, 10461, 11412, 11754, 13948, 14366, 20922, 21549, 23508, 28732, 31383, 41844, 43098, 62766, 64647, 86196, 125532, 129294, 207001, 258588, 414002, 621003, 828004, 1242006, 1863009, 2277011, 2484012, 3726018, 4554022, 6831033, 7452036, 9108044, 13662066, 20493099, 27324132, 40986198, 81972396]

約数ペア:

[(1, 81972396), (2, 40986198), (3, 27324132), (4, 20493099), (6, 13662066), (9, 9108044), (11, 7452036), (12, 6831033), (18, 4554022), (22, 3726018), (33, 2484012), (36, 2277011), (44, 1863009), (66, 1242006), (99, 828004), (132, 621003), (198, 414002), (317, 258588), (396, 207001), (634, 129294), (653, 125532), (951, 86196), (1268, 64647), (1306, 62766), (1902, 43098), (1959, 41844), (2612, 31383), (2853, 28732), (3487, 23508), (3804, 21549), (3918, 20922), (5706, 14366), (5877, 13948), (6974, 11754), (7183, 11412), (7836, 10461)]