21442980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 66495744

約数和(自身を除く): 45052764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 37, 39, 52, 60, 65, 74, 78, 111, 130, 148, 156, 185, 195, 222, 260, 370, 390, 444, 481, 555, 740, 743, 780, 962, 1110, 1443, 1486, 1924, 2220, 2229, 2405, 2886, 2972, 3715, 4458, 4810, 5772, 7215, 7430, 8916, 9620, 9659, 11145, 14430, 14860, 19318, 22290, 27491, 28860, 28977, 38636, 44580, 48295, 54982, 57954, 82473, 96590, 109964, 115908, 137455, 144885, 164946, 193180, 274910, 289770, 329892, 357383, 412365, 549820, 579540, 714766, 824730, 1072149, 1429532, 1649460, 1786915, 2144298, 3573830, 4288596, 5360745, 7147660, 10721490, 21442980]

約数ペア:

[(1, 21442980), (2, 10721490), (3, 7147660), (4, 5360745), (5, 4288596), (6, 3573830), (10, 2144298), (12, 1786915), (13, 1649460), (15, 1429532), (20, 1072149), (26, 824730), (30, 714766), (37, 579540), (39, 549820), (52, 412365), (60, 357383), (65, 329892), (74, 289770), (78, 274910), (111, 193180), (130, 164946), (148, 144885), (156, 137455), (185, 115908), (195, 109964), (222, 96590), (260, 82473), (370, 57954), (390, 54982), (444, 48295), (481, 44580), (555, 38636), (740, 28977), (743, 28860), (780, 27491), (962, 22290), (1110, 19318), (1443, 14860), (1486, 14430), (1924, 11145), (2220, 9659), (2229, 9620), (2405, 8916), (2886, 7430), (2972, 7215), (3715, 5772), (4458, 4810)]